I II II I ! I 1 li il il I II ! Ijip 111 I i ilt'l *•('(( iMMIl ,i! I THE PROSOBRANCHIA OF THE SIBOGA EXPEDITION PART II TAENIOGLOSSA and PTENOGLOSSA PART II TAENIOGLOSSA and PTENOGLOSSA This part contains the enumeration of about 340 species, of which 39 have been described as new to science, moreover a few varieties have been described and partly figured. By comparing these numbers to those of the first part, it is evident that this first part was more interesting, the groups now under consideration not being composed of so many deep water forms, and it is amongst those, as might be expected, that the most interesting species are to be found, as for instance in the genera Morio, Oocorys, Segaenzia. I have to thank again Mr. E. A. Smith for his assistance in comparing doubtful species also Messrs. J. Cosmo Melvill, Pii. Dautzenberg, E. R. Sykes and others, for assistance, loan of specimens or litterature. I must repair a few errata in the first part, which I discovered in returning the materials : p. 10. var. strigillata belongs to N. turrita not to variegata. p. 13. the Ncritilidac must follow after Septaria, which belongs to the Neritidae. p. 71. for Euchchts iutricatus Gould read Etich. instrictus. J4; /c SIBOGA-EXPEDITIE XUX'/i. 15 tion rAENiOGLOSSA Troschel. Fam. Aqi u i [dae Pilsbry. Aquillus Montfort. i. Aquillus (Lampusia) pilearis Linné. l.iNM . Syst. Nat. Ed. X. p. 749, N" 45«- RUMPH. Aml). Rariteitkamer, p. 96, PI. 29, fig. II. KlBNER. Coq. Viv. Vol. VI, Triton, p. 15, PI. 7, fig. 1. REEVE. Conch. Ie. Vol. II, Triton, fig. 23. K< STER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 196, PI. 42, fig. 3, 4; PI. 56, fig. 4. TRYON. Man. ui' Conch. Vol. III, p. 12. PI. 6, fig. 31—33, 35- 36- 4. Djangkar Java), g M. Coarse sand. 1 Spcc. ,t. 47. Bay of Bima, near South fort. Shore. 2 Spcc. 53. Bay of Nangamessi, Sumba. Up to 36 M. Coarse sand. 1 Spec. Stat. 17 1. Reef. 1 Spcc. Kesteven (Proc. Linn. Soc. N. South Wales, 1902, p. 476) says that according to Hanley, (Ipsa Linnaei Conchylia, p. 2871 the name pilearis should be applied to the Mediterranean Triton corrugatus Lam., and that tin- species under consideration should bear the name aquatilis Reeve, uniting it. in accordance with Tryon etc. with aquatilis. As Linné says: "Habitat in M. Mediterraneo", this view may be in so far right. But Troschel (Gebiss der Schnecken I, p. 234) d small differences in the radulae of Simpulum pilearis Liri. (1. c. PI. 20, fig. 3) and iquatile Reeve d.c. PI. 20, fig. 4) so I have left the name pilearis to the species generally known under this nomination. 2. Aquillus (Lampusia) aquatilis Reeve. mch. Ie. Vol. II, Triton, fig. 24. ikk. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 162, PI. 42, fig. 7, 8. Tryon. Man. of Conch. Vol. III, p. 12, PI. 6, fig. 34 (pilearis). Stat. 22;. South-Lucipara-island. Reef. 1 Spcc. ly stated, Pilsbry unites this form with the preceding species as a synonym, as • rs by which to separate them. 1 have never found difficulty in distinguishing I 1 1 3. Aquillus (Lampusia) rubecula Linné. LiNNÉ. Syst. Nat. Ed. X, p. 749, N° 459. KlENER. Coq. Viv. Vol. VI, Triton, p. 20, PI. 18, fig. 2. REEVE. Conch. Ie. Vol. II, Triton, fig. 29. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 159, PI. 41, fig. 3 — 11. Tryon. Man. of Conch. Vol. III, p. 12, PI. 7, fig. 40. Stat. 315. East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 1 Spec. The specimen is still very young, uniformly red. 4. Aquillus (Lampusia) gemmatus Reeve. REEVE. Conch. Ie. Vol. II, Triton, fig. 60. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 220, PI. 61, fig. 7, 8. Tryon. Man. of Conch. Vol. III, p. 13, PI. 7, fig. 41 — 44. Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 240. Banda. Reef. 1 Spec. Stat. 304. Lamakera, Sulor-island. Reef. 1 Spec. The specimens from Lamakera and Bima are quite typical, corresponding to Reeve's figures 60a and b. That from Banda is yellowish, with a few brown bands, calling in mind some varieties of the preceding species, but there the dark colour occupies the interstices of the spiral lirae, whereas in the specimen of gemmatus the dark colour runs over the lirae. In sculpture I see no difference with the other specimens. 5. Aquillus (Turritriton) laóiosus Wood, var. orientalis Nevill. Nevill. Journ. Asiat. Soc. Béng. Vol. 43, 1874, p. 29. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 261, PI. 69, fig. 8. Tryon. Man. of Conch. Vol. III, Triton, p. 17, PI. 9, fig. 68. Stat. 40. Pulu Kawassang, Paternoster-islands. Coralreef. 1 Spec. Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 60. Haingsisi, Samau-island. Lithothamnion-bank. 1 Spec. Stat. 240. Banda. 9 — 45 M. Black sand, coral. Lithothamnion-bank. 1 Spec. Stat. 285. South coast of Timor. 34 M. Lithothamnion. 1 Spec. Some of the specimens are too young, to decide with certainty if they belong to the variety oi-ientalis Nev., as however the larger specimens are not doubtful, I think they ought to be all placed here. 6. Aquillus (Turritriton) vcspaccus Lamarck? LAMARCK. An. s. vert. Ed. II, Vol. IX, p. 636. KlENER. Coq. Viv. Vol. VI, Triton, p. 18, PI. 3, fig. 2. REEVE. Conch. Ie. Vol. II, Triton, fier 61. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 179, PI. 52, fig. 3. Tryon. Man. of Conch. Vol. III, p. 22, PI. 12, fig. 94, 95. Stat. 37. Sailus-Ketjil, Paternoster-islands. Up to 27 M. Coral and coralsand. 1 Spec. 3 I I 2 identification is rather uncertain, the shell is nearly allied to the specimens of . /. 1 could compare, though 1 found no quite identical specimen. As the species scems t,. | variable, I think it is not safe to erecl ;i new species on one >mall specimen. itus Reeve, var. Rl nch. Ii-. Vol. II. Triton, fig. 59. KÜSTER. Martini-Chemii. Conch. Cab. Ed. II, Triton, p. 208, PI. 58, fig. 9. Man. of Conch. Vol. III, p. 22, PI. 12, fig. 96. Stal jailus-Ketjil, Paternoster-islands. 27 M. Coral and coralsand. 1 Spec. Stat. 43. Pulu Sarassa, Postillon-islands. 36 M. Coral. 1 Spec. 5anana-bay, East coast of Sula Besi. Reef. 1 Spec. Thes imens are also of somewhat doubtful identification, they don't quite agree with R] • description, a. o. I see no livid purple ridges, the specimens seem to be more nodulous; but the shape with the long canal agree; so I have united them as a slight variation. i considers this and the next species, to be forms of A. vespaceus. 8. Aquillus (Turritriton) gracilis Reeve. Ki 1 nch. Ie. Vol. II, Triton, fig. 58. Ki STER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 243, PI. 6j, fig. 5. • N. Man. of Conch. Vol. III, p. 22, PI. 12, fig. 97, 98. Stat. i"4. 1 42.5 S., I30°47.; I'. Halmahera Sca. 32 M. Sand, small stones and shells. 4 Spec. .:. 273. Pulu Jedan, East coast of Aru-islands. 13 M. Sand and shells. 2 Spec. The specimens from Stat. 273 are whitish, with a few brown lines, the canal is shorter than in the type, but seems to be slightly hroken. 9. Aquillus ( Turritriton) Pfeifferidnus Reeve. REEVE. Conch. Ie. Vol. II, Triton, fig. 14. Ki STER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 194, PI. 35, fig. 4, 5. . Man. of Conch. Vol. III, p. 23, PI. 13, fig. 107. Stat. ^1. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. Stat. 47. Bay of Bima, near South fort. 13 — 54 M. Mud with patches of fine coralsand. 1 Spec. Sta'. 5apeh-strait. 69 M. Coral and shells. 1 Spec. Stat. 71. Makassar and surroundings. 32 M. Mud, sand uith mud. 1 Spec. Stat. jj. Borneo-bank. 59 M. Fine grey coralsand. 3 Spec. Stat. 164. 1 42.: S., 130 47.5 E. Halmahera Sea. .,-' M. Sand, small stones and shells. 1 Spec The majority of the specimens is very young. io. Ai] ui 'llus sp. il young specimens, too young for identification, from Stat. 37, 240 and 315, seem or at least to nearly allied species; another from Stat. 225 is certainly different, r, I ntify it with the upper whorls of any of the species I could compare. ■1 H3 1 1 . Aqiiilhis (Guttumium) grandimaailatus Reeve. REEVE. Conch. Ie. Vol. II, Triton, fig. 20. KüSTER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 1S3, PI. 54, fig. 4. TRVON. Man. of Conch. Vol. III, p. 19, PI. 10, fig. 76. Stat. 99. North-Ubian, Sulu-archipelago. 16 — 23 M. Lithothamnion-bottom. 1 Spec. The only specimen is still young, but perfectly agrees in sculpture with the upper whorls of an adult specimen from the Philippines. Tryon considers it to be the same as T. lotorium Lin., he says: "the distinctive characters are individual only". As far as I can judge, I think the differences of sculpture are sufficiënt to separate them specifically. The young shell is covered by a thin epidermis with long bristles on the radiating ribs and varices. 12. Aquillus (Guttumium) tuberosus Lamarck. LAMARCK. An. s. vert. Ed. II, Vol. IX, p. 635. RUMPH. Amb. Rariteitkamer, p. 82, PI. 24, fig. H. KiENER. Coq. Viv. Vol. VI, Triton, p. 12, PI. 14, fig. 2. Reeve. Conch. Ie. Vol. II, Triton, fig. \b. KüSTER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 204, PI. 58, fig. 5. TRYON. Man. of Conch. Vol. III, p. 23, PI. 13, fig. 112. *Island Enkhuizen near Batavia. 1 Spec. The juvenile specimen belongs to the whitish variety, represented by the quoted figures. Distortrix Link. 1. Distortrix anus Linné. LlNNÉ. Syst. Nat. Ed. X, p. 750, N° 463. RUMPH. Amb. Rariteitkamer, p. 82, PI. 24, fig. F. KiENER. Coq. Viv. Vol. VI, Triton, p. 22, PI. 15, fig. 1. REEVE. Conch. Ie. Vol. II, Triton, fig. 44. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 198, PI. 57, fig. 1, 2. Tryon. Man. of Conch. Vol. III, p. 35, PI. 17, fig. 173, 174; PI- I5> fig- r53- Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 1 Spec. 2. Distortrix canccllinus Roissy. Roissy. Buffon, Moll. 6, p. 56, Nó 12. KiENER. Coq. Viv. Vol. VI, Triton, p. 21, PI. 14, fig. 1 {clathratrum). Reeve. Conch. Ie. Vol. II, Triton, fig. 45. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 200, PI. 57, fig. 5, 6. Tryon. Man. of Conch. Vol. III, p. 35, PI. 17, fig. 175. Stat. 1. 1400 M. distant from reef a Zwaantjes-droogte", Madura-strait. U M. Grey mud with small broken shells. 1 Spec. Stat. 2. Madura-strait. 56 M. Grey mud with some radiolariae. 1 Spec. Stat. 47. Bay of Bima, near South fort. 55 M. Mud, with patches of fine coralsand. 1 Spec. 5 1 1.) th coast of Manipa-island. 36 M. Coral, sand. 1 S])cc. • I . poinl ol rimor. 27 54 M. Sand, coral and Lithotham- nii l . rimor Sea. 73 M. Soft mud with very fine sand. 1 Spec. . Saleh-bay. Up to {6 M. Sand, coral and mud. 1 Spec. The ■ specially the youngest «uk-s are covered by an epidermis witl Gyrineum Link. 1 . C 'M gyrinum Linné. I.inm. Syst. Nat. Ed. X. p. 74S. X" 453. Kü iq. Viv. Vol. VI, Kandia, p. 28, PI. 2, fig. 3 [ranina). /E. ( onch. 1c. Vol. II. Ranella, fig. 49. KüSTER. Martini-Chenin. Conch. Cab. Ed. II, Triton, p. 152, PI. 40, fig. 4 — 6. TRYON. Man. of Conch. Vol. III. p. 43, Tl. 23, fig. 48. Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. Stat. 47 . < )ff Batu Putih, entrance of Bay of Bima. Shore. 1 Spec. Stat. 123. North-bay, Biaru-island. 36 — 27 M. Stone and Lithothamnion-bottom. 1 Spec. Stat. 174. Waru-bay, North coast of Ceram. Keef. 1 Spec. Stat. ^22. South of Tandjong-Lajar, South coast of Bawean. 32 M. Coral. 1 Spec. 2. Gyrineum bituberculare Lamarck. LAMARCK. An. s. vert. Ed. II, Vol. 9, p. 548. KJENER. Coq. Viv. Vol. VI, Ranella, p. 26, PI. 6, fig. 2. REEVE. Conch. Ie. Vol. II, Ranella, fig. 40. Ki STER. Martini-Chémn. Conch. Cab. Ed. II, Ranella, p. 153, PI. 39^, fig. 9, 12. TRYON. Man. of Conch. Vol. III, p. 42, PI. 23. fig. 44. Stat. 53. Bay of Nangamessi, Sumba. Up to 36 M. Coralsand. 2 Spec. Stat. 116. West of Kwandang-bay-entrance. 72 M. Fine sand with mud. 1 Spec. Stat. 193. Sanana-bay, East coast of Sula-Besi. Keef. 1 Spec. Stat. 2S5. South coast of Timor. 34 M. On the limit between mud and coral. Lithothamnion. Stat. 296. Xoimini, South coast of Timor. 8 — 36 M. Sandy mud. 1 Spec. [2 Spec. Stat. 313. East of Dangar-Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 2 Spec. Stat. 318. 6°36'.sS., 140° 55.5 1'-. Java Sea. SS M. Fine, yellowish-grey mud. 1 Spec. The specimens from Stat. 116 and 285 are young and have a somewhat misleading appearance, by the closer sculpture. Ilowever the species is very variable in this respect, and these specimens are connected t<> more typical ones by intermediate forms, I. i. those from Stat. 313. Tryon says on this. subject (1. c. p. 43): "The tubercles are numerüiis on the earlier whorls, bnt in some instances) coallesce into two large ones between the varices on tlie last whorl of the adult. When the more numerous tubcrcles are persistent, the resemblance to the R. tuberculata) is striking". Gyrineum cuspidatum Reeve. PI. XV, fig. 7. nch Ie. Vol. II, Ranella, fig. 48. Man. of Conch. Vol. III, p. 43, PI. 23, fig. 49. 6 H5 Stat. 51. Madura-bay. 69 — 91 M. Fine, grey sand; coarse sand with shells and stones. 1 Spec. Stat. 123. North-bay, Biaru-island. 36 — 27 M. Stone and Lithothamnion-bottom. 1 Spec. Stat. 315. East of Sailus-Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 1 Spec. The specimen from Stat. 315 is young, but agrees sufficiently with the other specimens to be identified. The long and slender radula, has the teeth in about 108 transverse rows. The rhachidian tooth (R) has a subquadrangular body with the sides strongly excavated in the posterior half, posterior margin much shorter than the anterior one ; the cusp has 5 denticles, of which the median one is the largest; the lateral tooth (1) has an oblong shape with a large denticle on the proximal side of the cusp and three smaller distal ones; the uncini (U) are hooked, slender, the first one with a small denticle on the proximal side, only visible by the transparency of the teeth. The construction of the radula, proves that Dall, in his paper (An historical and systematic review of the Frog-shells and Tritons; Smiths, Miscell. Coll. Vol. 47, 1905, p. 114 — 144) is right in calling the species united as Gyriiiauit, the nearest allies of Aquillus. He mentions only the radula of Ranella (Apollon) argus Lam., described by Troschel, (Gebiss der Schnecken, Vol. I, pi. 20, iïg. 11) which is conchologically a somewhat peculiar species; really the radula now under consideration, shows more resemblance to those of Tritonium femorata Lin. (1. c. fig. 2) and of T. pilcarc Rve (1. c. fig. 3), the most typical difference being the narrow posterior basal margin. 4. Gyrinmm pusillum Broderip. Broderip. Proc. Zool. Soc. Lond. 1832, p. 194. Reeve. Conch. Ie. Vol. II, Ranella, fig. 44. TRYON. Man. of Conch. Vol. III, p. 44, PI. 24, fig. 56, 57. Stat. 7. Near reef of Batjulmati (Java). 15 M. Coral and stones. i Spec. Stat. 23- Kay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. Stat. 60. Haingsisi, Samau-island. Lithothamnion-bank. 1 Spec. Stat. 144. North of Salomakiëe-(Damar)-island. 45 M. Coral bottom and Lithothamnion. 1 Spec. Stat. 154. o°7'.2N., I30°25'.5E. Halmahera Sea. 83 M. Grey muddy sand, shells and Litho- thamnion. 1 Spec. Stat. 162. Between Loslos and Broken-islands. W. coast of Salawatti. iS M. Coarse and fine sand, with clay and shells. 1 Spec. Stat. 164. i°42.5 S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 2 Spec. Stat. 204. Northern entrance of Buton-strait. 75 — 94 M. Sand with dead shells. 1 Spec. Stat. 260. Kei-islands. 90 M. Sand, coral and shells. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. Stat. 315. East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 1 Spec. This species is very variable in colour and also in sculpture; the specimen from Stat. 144 is yellow, and has the spiral lirae scarcely developed on the lower whorls ; if this character be not individual, it might give right to a vanetal name. 5. Gyrineum (Biplex) perca Perry (PI. X, fig. 1, var. aculcata n. var.) Perry. Conch. PI. 4, fig. 5. KlENER. Coq. Viv. Vol. VI, Ranella, p. S, PI. 6, fig. 1 {pulchra). REEVE. Conch. Ie. Vol. II, Ranella, fig. 47 [pulchra). TRYON. Man. of Conch. Vol. III, p. 43, PI. 23, fig. 51 (pulchra). 7 i [6 .; N., i . Sulu Si ■ M. Stony bottom. i Spec. 1 1 in. t Sea, ii_' M. Mud, sand and shells. 3 Spec. The specimen from Stat. 95 is a worn, broken shell, but quite typical in shape, with two tubercles between the varices. rhose from Stat. 289 are small, with 3 or 1 rows of numerous h of the upper whorls; thej are stil] more characterised by having distinct spines, onlj ted at their foot, instead of the broad wings with short spines, characteristic for the tvpc. mber imens 1 could compare, is restricted, 1 have not described this fon new If the spinous character proves to be constant, it may l>e called var provisionally distinguished it under that name. Biplex) pulchellum Forbes. 3. Voy. of the "Rattlesnake", Vol. II, p. 382, PI. 3, fig. 6a, b. E. A. SMITH. Zool. Coll. of H.M. S. "Alert", p. 56. Stat. [62. Between Loslos and Broken-islands. W. coast of Salawatti. 18 M. Coarse and fine sand with clav and shells. 1 Spec. 1 Inly one broken shell, which agrees in every respect with my specimen from Torres- strait. Tryon lias only mentioned it in his register, as a synonym of G. perca, but not in his systematic enumeration. Boog Watson in his " Challenger"-Gastropods, has mentioned it (p. 402) also as a synonym. E. A. Smitii (1. c.) and Brazier have separated it, I think on sufficiënt groufids. Indeed, if one compares the shells, they are very different; with the same number of whorls, the shell is still much smaller, than the var. aculeata of the preceding species, and has the tubercles on the whorls still more numerous, the varices are impressedly striate, not ribbed, with broad interstices, as in G. perca. Bursa Bolten. 1 . Bursa crumena Lamarck. LAMARCK. An. s. vert. Ed. II, Vol. IX, p. 644. KlENER. Coq. Viv. Vol. VI, Ranella, p. 4, PI. 3, fig. 1 [elegans). REEVE. Conch. Ie. Vol. II, Ranella, fig. 17. KÜSTER. Martini-Cliemn. Conch. Cab. Ed. II, Ranella, p. 149, PI. 39*7, fig. 3. TRYON. Man. of Conch. Vol. III. p. 37, PI. 18, fig. 3. Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. The only specimen is a dead shell, which seems to have been inhabited by one of the Paguridae. 2. Bursa margaritula Deshayes. DESHAYES. An. s. vert. Ed. II, Vol. IX, p. 530. Kil NER. Coq. Viv. Vol. VI, Ranella, p. 14, PI. 8, lig. 2. 1. Conch. Ie. Vol. II, Ranella, fig. 15. . Martini-Chemn. Conch. Cab. Ed. II, Ranella. p. 137, PI. 38, fig. 4, 5'' , Man. of Conch. Vol. III, p. :-,/, PI. 18, fig. 4. 8 ii7 Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 3 Spec. Stat. 50. Bay of Badjo, West coast of Flores. Up to 40 M. Mud, sand and shells. 1 Spec. Stat. 164. i°42'.5 S., i30°47'.s E. Halmahera Sea. 32 M. Sand, small stones and shells. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud, 3 Spec. The specimen from Stat. 50 is white, with a few brown spots and a yellow margin of the aperture, but agrees in other respects. I must doubt if the figures of the Conchylien-Cabinet really belong to this species, notwithstanding the statement that they had been erroneously united to B. albivaricosa. I think the canal resembles much more in shape that of Bursa rana (albivaricosa) than that of B. margaritula, which is much shorter and in the back view is directed to the left. 3. Bursa rana Linné. Linné. Syst. Nat. Ed. X, p. 748, N° 452. REEVE. Conch. Ie. Vol. II, Ranella, fig. 2 (albivaricosa). KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Ranella, p. 133, PI. 38, fig. 8, 9 (albivaricosa). TRYON. Man. of Conch. Vol. III, p. 38, PI. 18, fig. 5, 6 (albivaricosa). Stat. 2. Madura-strait. 56 M. Grey mud with some radiolariae. 5 Spec. Stat. 4. Djankar (Java). 9 M. Coarse sand. 1 Spec. Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 60. Haingsisi, Samau-island. Reef. 1 Spec. Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud. 1 Spec. Stat. 162. Between Loslos and Broken islands. West coast of Salawatti. 18 M. Coarse and fine sand with clay and shells. 1 Spec. Stat. 231. Amboina. 40 M. Coralsand. 2 Spec. Stat. 251. 5°28.4S., i32°o'.2 E. Arafura Sea. 204 M. Hard coralsand. 1 Spec. Stat. 318. 6°36'.5S., U4°55'.5E. Java Sea. 88 M. Fine yellowish-grey mud. 1 Spec. The specimen from Stat. 251, which is a dead, broken shell, differs from the other specimens in sculpture, the beads being larger, the spines on the body and varices smaller, it is also slightly different in shape; as however Mr. E. A. Smith declared it to be merely a variety of B. rana I have left this single specimen under that species. 4. Bursa subgranosa (Beek) Sowerby. Sowerby. Conch. 111. fig. 18. RUMPH. Amb. Rariteitkamer, p. 82, PI. 24, fig. F. KlENER. Coq. Viv. Vol. VI, Ranella, p. 5, PI. 4, fig. 1 (Beckiï). REEVE. Conch. Ie. Vol. II, Ranella, fig. 1. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Ranella, p. 135, PI. 93, fig. 2. TRYON. Man. of Conch. Vol. III, p. ^8, PI. 19, fig. 1. Stat. 12. 7°i5'S., ii5°i5'.6E. Madura Sea. 289 M. Mud, and broken shells. 1 Spec. Stat. 306. 8°27'S., i22c54'.5E. Savu Sea. 247 M. Sandy mud. 2 Spec. The specimens are dead shells, so it is uncertain if they have lived at the considerable depth mentioned on the labels. 9 SIKOGA-EXPEDITIE XLIX1 II. l6 i iS 5. But by. li. lil., fig. 17. . h. [c. Vol. II, Ranella, fig. 22. . Martini-Chemn. Conch. Cab. Ed. II. Ranella, ]>. 156, PI. - 10. TRYON. Man li. Vol. III. Ranella, p. 38, PI. i,s, fig. 7 [subgranosa var.). St.it. _• 17. Buton-strait. [48 M. Grey mud. 2 Spec. Tryon (1. c.) considers tliis species to be a variety of B. subgranosa-, I find too important differences in shape, sculpture, especially of the varices anti in the canal, to share his opinion. 6. Bursa (Bufonia) lampas Linné. Linm . Syst. Nat. Ed. X. p. 748, N° 454. Ki MPH. Amb. Raritcitkamer, p. 94, PI. 28, fig. CD. KlENER. Coq. Viv. Vol. VI, Triton, p. 38, PI. 5, fig. 1. REEVE. Conch. Ie. Vol. II, Triton, fig. 30. K< STER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 175, PI. 47, fig. 3, 4; PI. 40, fig. 7, 8. TRYON. Man. of Conch. Vol. III. p. 3S, PI. 19, fig. 12. Stat. 89. Pulu Kaniungan Ketjil. Reef. 1 Spec. Stat. 240. Banda. 9 — 36 M. Lithothamnion-bank. 1 Spec. The specimen trom Stat. S9 is only a fragment. 7. J>a>-sa (LampaJopsis) rhodostoma (Beek) Sowerby. SOWERBY. Conch. 111. Ranella, fig. IO. REEVE. Conch. Ie. Vol. II, Ranella. fig. 32. KOSTER. Martini-Chemn. Conch. Cab. Ed. II, Ranella, p. 155, PI. 39*7, fig. 11. TRYON. Man. of Conch. Vol. III, p. 40, PI. 21, fig. 25. Stat. 66. Bank between islands of Bahuluwang and Tambolungan, south of Saleyer. 8 M. Dead coral, Halimeda, Lithothamnion. 1 Spec. Stat. 172. Between Gisser and Ceram-Laut. 18 M. Coral- and Lithothamnion-bottom. 1 Spec. Tl' men from Stat. 172 is young, and lias the apertnre not developed, that from St.n. 66 though small. lias well-developed apertural margins, which are dark purple, with lighter patches, and resembles in colour of the aperture, Rekvk's Ranella venustula (l.c. fig. 11) but does not agree with the description of that species. It resembles also the figures of A'. Paulucciana Tap]». Can. :.\nn. Soc. Mal. Belg. Vol. XV, fase 1, PI. 2, fig. 10, 17), but it is not so dark and a higher spin-. Th-- identification of small specimens in tliis group remains somewhat uncertain. Tri this species t" Ik- a variety of />'. cruentata Sow. Bursa Ranella) tuberosissima Reeve. . I nch. Ie. Vol. II. Ranella, fig. 39. . Martini-Chemn. Conch. Cab. Ed. II, Ranella, p. 157, PI. 47, tig. 1, 2. Man. of Conch. Vol. III, p. 39, PI. 20, fig. 14. ii9 Stat. 89. Pulu Kaniungan Ketjil. Reef. 1 Spec. Stat. 144. Salomakiëe-island. 45 M. Coral-bottom and Lithothamnion. 1 Spec. Stat. 282. Between Nusa Besi and N. E. point of Timor. 27 — 54 M. Sand, coral and Litho- thamnion. 1 Spec. The specimen from Stat. 89 is broken, those from the other localities are very young and consequently a little uncertain. Tryox calls this species a synonym of B. bufonia. 9. Bursa (Colubrellina) granifera Lamarck. Lamarck. An. s. vert. Ed. II, Vol. 9, p. 548. KlENER. Coq. Viv. Vol. VI, Ranella, p. 16, PI. II, fig. 1. Reeve. Conch. Ie. Vol. II, Ranella, fig. 30. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Ranella, p. 143, PI. 39a, fig. I. TRYON. Man. of Conch. Vol. III, p. 41, PI. 22, fig. 35, 36. Stat. 89. Pulu Kaniungan Ketjil. Reef. 1 Spec. Stat. 174. Waru-bay, North coast of Ceram. 18 M. Mud. 1 Spec. Stat. 213. South-island. Reef. 1 Spec. Stat. 231. Amboina. Reef. 1 Spec. Stat. 279. Rumah-Kuda-bay, Roma-island. Reef. 1 Spec. 10. Bursa (Colubrellina) affitiis Broderip. B-RODERIP. Proc. Zool. Soc. Lond. 1832, p. 179. REEVE. Conch. Ie. Vol. II, Ranella, fig. 19. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Ranella, p. 142, PI. 38a, fig. 5. Tryon. Man. of Conch. Vol. III, p. 42, PI. 22, fig. 38. Stat. 58. Seba, Savu. Reef. 1 Spec. Stat. 131. Beo, Karakelang-islands. 13 M. Mud and Sand. 3 Spec. Stat. 213. South-island near Saleyer. Reef. 1 Spec. Stat. 225. South Lucipara-island. Reef. 1 Spec. Stat. 240. Banda. 9 — 45 M. Black sand and coral. 1 Spec. Stat. 279. Rumah-Kuda-bay, Roma-island. Reef. 2 Spec. This species which is rather variable, cannot always be easily separated from the pre- ceding one. 1 1 . Bursa (Craspcdotriion) convoluta Broderip. Broderip. Proc. Zool. Soc. Lond. 1833, p. 7. Reeve. Conch. Ie. Vol. II, Triton, fig. 92. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Triton, p. 217, PI. 61, fig. 3. TRYON. Man. of Conch. Vol. III, p. 25, PI. 13, fig. 118. Stat. 164. i°42.5 S., i30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 1 Spec. The only specimen of this peculiar species is unfortunately a dead one. Dall (Smithsonian miscell. Coll. Vol. 47, p. 119) locates this species in the genus Bursa, though the anatomy is unknown. Fam. ü ky i hidai Fischer. Oocorys Fischer. i . i Weberi n. sp. PI. X. fig. 2. Stat. i,"- 7 S., 150° 33 .4 K. Ceram Sea. [914 M. Fine grey .nul green mud. 1 Spec. 'lobosely ovate, moderately ventricose, rather strong, white under a yellowish epidermis; whorls about 5 , (nucleus ones worn) convex, with a distinct suture and with strong of which there are six on the penultimate whorl; 22 on the last one, including the eparated l>y interstices, with a few exceptions about as broad as the themselves, the uppermost liration borders the suture and is separated from the second by a broader concave interstice, giving it a channellike appearance; the interstices and in ree the lirae, are crossed by radiating striae, which are coarser on the upper whorls. Aperture oblong-ovate, angular above, ending in a broad canal directed towards the left, columellar margin with a rather strong layer of enamel, spread over the bodywhorl; it is grooved by the lirae and covered with microscopic granules-, columella rounded, curved, strongly bent to the left along the canal; right margin nearly regularly curved, with an angle, corres- ponding to the second lira, and with an external rib, expanded and grooved interiorly; these grooves extend in the interior of the shell, which is porcellaneous. ( )perculum as in the typical species, reddish-brown, with a shallow groove along the rigrht marefin. Alt. 38, lat. 27; apert. alt. incl. perist. 28, lat. [41/,. This species is less globose than O. sulcata Fischer (Journ. Conch. 1883, p. 392) with fewer lirae (6 in the penultimate whorl, instead of 8 to 12) the radiating striae seem to be much weaker than in sulcata, at least than in the "Challenger" specimen, where the interstices are much broader (Boo<; Watson: "Challenger" Gastropoda, PI. 17, fig. 11). In Benthodolium (= Oocorys) abyssorum Yerrill (Transact. Connecticut Acad. Vol. VI, 1882 — 85, p. 177, PI. 31, fig. 1 2 i the spire is much higher if compared with the aperture, the lirae are much more numerous, and the interspaces much broader, the canal much straighter. It appears rather doubtful to me, that these specimens should belong to the same species, unless it be exces- si vel y variable. 1 think the differences enumerated above, will be sufficiënt to separate shells of such a remote provenience. 2. Oocorys sulcata Fischer. FlS( HER. Journal de Conchyl. 1883, p. 392. Manuel de Conchyl. p. 679, fig. 536. TRYON. Man. of Conch. Vol. VII, p. 267, PI. 6, fig. 42. Stat. 314. 7°36'S., H7°30#.8E. Flores Sea. 604 M. Fine, sandy mud. 1 Spec. • only specimen is .1 dead, apparently not adult shell, the peristome not being developed. haracters to separate it from the atlantic species, described by FlSCHER, it agrees far as may be judged from the description and Fischer's figure, which is 12 I only a woodcut; the small differences may be individual; the number of spiral lirae described by the author, as being from 8 — 12, are at least 12, perhaps 13; the most striking difference, the simple peristome, is probably valueless, as it depends without doubt on age. E. A. Smith (Ann. and Mag. of Nat. Hist. Ser. 7, Vol. 17, 1906, p. 170) mentions a specimen under the name of var. indica, with the locality "off S. of Ceylon, 191 2 fath." which cannot be separated specifically from the species under consideration. 3. Oocorys elongata n. sp. PI. X, fig. 3. Stat. 221. 6°24'S., I24°39'E. Banda Sea. 2798 M. Solid, bluish-grey mud with Foraminifera. 2 Spec. Shell elongately-ovate, rather strong, white under a yellowish epidermis; spire rather high; whorls 5, (nucleus wanting) convex, with an impressed suture and strong spiral lirae, 10 to 12 on the penultimate whorl, from 25 to 32 on the last one, they are separated by inter- stices which are in most cases broader than the lirae; the whole shell (lirae and interstices) is crossed by radiating striae. Aperture oblong-ovate, angular above, ending below in a very short, wide canal, slightly directed towards the left, columellar margin covered by a layer of enamel spread over the bodywhorl, it is grooved by the lirae and microscopically granular, columella rounded, slightly curved, strongly bent to the left, along the canal; right margin regularly curved, slightly expanded but not ribbed exteriorly, thickened and grooved interiorly; aperture porcellaneous. A small umbilical slit, may disappear with age. Operculum typical, reddish-yellow, with a shallow groove at the right margin. Alt. 2,-^1^ lat. 221/.,; apert. alt. 21 (incl. perist.) lat. n1/,. This species di fiers from O. sulcata, in being much more elongate, with a higher spire, the aperture being about i1/., X as long as the spire, being nearly 2 X as long in O. sulcata, even the more elongate figure of the "Challenger" specimen, is still shorter, and has also a shorter spire in proportion. Benthodolium abyssorum Verrill, which agrees in this respect, is a much more ventricose shell, with much broader aperture. The two specimens vary in sculpture as stated above, that of the smallest specimen being considerably finer; the upper whorls of this specimen are strongly eroded and the last whorl seems to have been broken, at least at some distance from the thin margin an irregular varix makes its appearance, and the umbilicus is more open. I think however these differences between the two specimens, will prove to be individual and in part accidental. Fam. Cassididae Herm. Cassis Klein. 1 . Cassis (Semicassis) pila Reeve. REEVE. Conch. Ie. Vol. V, Cassis, fig. 21. RUMPH. Amb. Rariteitkamer, p. 84, PI. 25, fig. C. KOSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. III, Cassis, p. 39, PI. 51, fig. 9, 10. Tryon. Man. of Conch. Vol. VII, p. 275, PI. 5, fig. 75 {saburon var. pild). 13 I 22 Stat. i. M I from reef "Zwaantjes-droogte". 37 M. Grey mud, witli small, •ken shclls. 1 Sp< St.it. 2. Madura- I Grey mud with some Radiolariae. 1 Spec. r-bay-entrance. 72 M. Fine sand with mud. 1 Spec. 1 Stat. 1 is young but characteristic, tliose from Stat. 2 and 110 are i than the type and have only obsolete brown, square spots (perhaps bleached as the) nly empty shell 2. 1 bisulcata Schubert 6c Wagner. ERT & WAGNER. Fortsetz. Martini-Chemn. Conch. Cab. Ed. I, Vol. 12, p. 68, PI. 223, 1 2. REEVE. Conch. Ie. Vol. V, Cassis, fig. 6. KOSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. III, Cassis, p. 19, PI. 43, fig. 6, 7. TRYON Man. of Conch. Vol. VII, p. 2-76, PI. 5, fig. ?S (saburon var. bisulcata). Stat. 231. Amboina. 40 M. Coralsand. 6 Spcc. Stat. 2". Kulewatti-(Sollot)-bay, Dammer-island. 18 M. Sand, white and black, mixed. 1 Spcc. 1 cannot agree with Tryon's opinion, that this and the preceding species are only varieties of C. saburon Adans., the species now under consideration, ma)- be easilv distinguished by its last whorl, which is smooth, with exception of the grooves at the upper and basal parts, instead of being spirally striate as in C. pila and saburon, which may on their turn be distinguished from each other, by the lower part of the columella, which is closcly plicated in C. pila, as K ster (1. c.) has observed, moreover by closer striae on the bodywhorl of that species. 3. Cassis (Bezoardica) glauca Linné. l.i.NM'. Syst. Xat. Ed. X, p. ju, N° 391. [PH. Amb. Rariteitkamer, p. 83, PI. 25, fig. A. KiKNHR. Coq. Viv. Vol. VII, Cassis, p. 27, PI. 5, fig. 9. REEVE. Conch. Ie. Vol. V, Cassis, fig. 33. I. 1 R. Martini-Chemn. Conch. Cab. Ed. II, Vol. III, Cassis, p. 7, PI. 37, fig. 1, 2. TRYON. Man. of Conch. Vol. VII, p. 276, PI. 6, fig. 79, 80. Stat. 231. Amboina. Reef. I Spec. 4. Cassis (Casmaria) vibex Linné. LlNNÉ. Syst. Nat. Ed. X, p. j},j. X" 392. Rumph. Amb. Rariteitkamer, p. 84, PI. 25, fig. E, 6, 9. KlENER. Coq. Viv. Vol. VII, > a-sis, p. 22, PI. n, fig. 20, 20<?. REEVE. Conch. Ie. Vol. \'. ( 'assis, fig. 15^, c. . Martini-Chemn. Conch. Cab. Ed. II, Vol. III, Cassis, p. 12, PI. 38, fig. ;, 7. TRYON. Man. of Conch. Vol. VII, p. 2jj, PI. 7, fig. 89. . Bay <>f Nangamessi, Sumba. Up to 36 M. Coralsand. 1 Spec. 5eba, Savu. Keef. 1 Spec. ■ j. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. I 1 Spec. 14 123 The specimens are small, smooth, those from Stat. 58 and 234, with the often occurring brown lines. (Kiener, 1. c. fig. 20a). var. erinacea Linné. LlNNÉ. Syst. Nat. Ed. X, p. 736, N° 390. RUMPH. Amb. Rariteitkamer, p. 84, PI. 25, fig. D, 7. Kiener. Coq. Viv. Vol. VII, Cassis, p. 23, PI. n, fig. 21. Reeve. Conch. Ie. Vol. V, Cassis, fig. 15^, i^d. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. III, Cassis, p. 13, PI. 38, fig. 6; PI. 49, fig. 5, 6. TRYON. Man. of Conch. Vol. VII, p. 277, PI. 7, fig. 9. Stat. 64. Kambaragi-bay, Tanah-Djampeah. 32 M. Coral, coralsand. 1 Spec. Stat. 193. Sanana, Sula Besi-island. Reef. 1 Spec. 5. Cassis (Casmaria) torquata Reeve. Reeve. Conch. Ie. Vol. V, Cassis, fig. 1 a — c. KÜSTER. Martini-Chemn. Conch. Cab. Ed. Il, Cassis, p. 15, PI. 39, fig. 3, 4, 5, 6. TRYON. Man. of Conch. Vol. VII, p. 278, PI. 7, flg. 92, 93. Stat. 91. Muaras-reef, inner side, East coast of Borneo. 54 M. Hard coralsand. 1 Spec. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, sand and coral. 1 Spec. The specimen from Stat. 94 belongs to the smooth type, that from Stat. 91 to the nodulose variety; this latter specimen is very small. Morio Montfort. 1. Morio grannlosa n. sp. PI. X, fig. 4. Stat. 316. 70 I9'.4 S., n6°49'.5E. 538 M. Fine, dark brown, sandy mud. 1 Spec. Shell globosely-ovate, ventricose, with a raised, conical spire; white, with a yellowish epidermis; whorls about ó1/», the upper part of the smooth nucleus wanting, the whorls are convex, separated by a deep suture, spirally striate and lirate, the upper ones moreover with obtuse ribs; on the lower whorls the infrasutural liration is strong, divided by a groove, more below the lirae are still stronger and granulose, and number from one on the fourth whorl, to two and three on the penultimate one; these 3 principal lirae are persisting on the last whorl, where they bear about 30 granules, and are succeeded towards the front part of that whorl, by eight granulose lirae, which become however weaker in approaching that iront part and are finally succeeded by about 12 nearly smooth lirae; the 3 principal lirae are divided by 2 grooves, and a few of the other ones by a single groove, moreover many of the interstices are provided with much smaller lirae, from one to three in number in each interstice; the whole shell is crossed by conspicuous growth-lines. Aperture oblong-ovate, angular above, terminating anteriorly in a short, slightly recurved canal ; columellar margin callous, with rugose plicae, corresponding to the lirae, columella rounded, nearly straight, obliquely truncated, its left margin slightly expanded, leaving only a scarcely visible umbilical slit; outer margin thickened, riblike 124 rnally, flattened and obscurely denticulate internally, slightly angular at some distance from its upper part, where it joins the body-whorl. Alt. 54, lat. 38; apert. alt. (with canal) 37, lat. 14 Mill. This species h perficial resemblance with the Mediterranean M. echinophora L. hut differs in every particular, the canal is much less recurved, the columellar plate is fixed to the body-whorl, not loosened like in echinophora, the labial rib is much stronger, the sculpture more delicate, the shape more pyriform, etc. 2. Morio lineata n. sp. PI. X, tig. 5. . 173. 3 j; S., i3i°o'5E. 567 M. ('tram Sea. Fine, yellow grey mud. 2 Spec. Shell globosely-ovate, ventricose, with a rather high spire, thin; under a yellowish epidermis it is white with light brown lirae. Whorls abont 8, of which 41/, form the smooth, yellow nucleus; t hi- other whorls very convex, with a conspicuous suture and rather strong spiral lirae, about 16 principal ones on the last whorl and smal] intermediate ones, which are of a still lighter colour, moreover 5 lirae on the canal; after a few thinner lirae below the suture, 9 of the principal lirae are more or less granulose on the dorsal part of the whorl ; the shell is crossed by numerous, rather conspicuous, lamellose or riblike striae, which run over the lirae, and very fine growth-striae. Aperture oblong-ovate, angular above, ending below in a short, broad, only slightly recurved canal : columellar margin with a very thin layer of enamel on the bodywhorl, slightly stronger below, on the nearly straight columella, which is slightly oblique near the canal. leaving a very small umbilical slit, nearly closed by the layer of enamel: outer margin larly curved, exteriorly with a conspicuous rib, which is flattened and rather strongly denticulate interiorly. Interior of aperture with grooves, corresponding to the external lirae, the grooves light brown. Alt. 411,',. lat. 297.; apert. alt. (incl. canal) 28, lat. 121/, Mill. This species is allied to the preceding one, but the shell is smaller, thinner, more ventricose, the granules on the brown lirae are weaker and not divided by spiral striae, the canal is shorter, less recurved, the ventral side and columella nearly without enamel. 3. Morio Alcocki Smith. PI. X, fig. 6. SM1TH. Ann. Mag. Nat. Ilist. Ser. 7, Vol. 18, (906, p. 170. Stat. 314. 7°36'S., 1 17° 30'. s ]•;. Flores Sea. 604 M. Fine, sandy mud. i Spcc. The specimen has a length of 104 Mill., its diam. maj. is 68 Mill. and is consequently still a little larger than Smith's type, which is 99 X 61 Mill. The species has been or will be figured in Alcock's Illustrations Zool. "Investigator". As this work, of which I owe the parts red untill December 1906, to the libcrality of its author, is not generallv known, 1 have Mn it useful to give figures of the magnificent "Siboga" specimen. 16 125 Fam. Doliidae Adams. Dolium Lamarck. i. Dolium olearium Bruguière. BRUGUIÈRE. Dict. des Vers. N° I. RUMPH. Amb. Rariteitkamer, p. 91, PI. 27, fig. D. KlENER. Coq. Viv. Vol. VII, Dolium, p. 6, PI. 1, fig. 1. Reeve. Conch. Ie. Vol. V, Dolium, fig. 14. Küster. Martini-Chemn. Conch. Cab. Ed. II, Vol. III, Dolium, p. 68, PI. 61, fig. 1. Tryon. Man. of Conch. Vol. VII, p. 262, PI. 2, fig. 8. Stat. 1^. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. Stat. 142. Laivvui, North coast of Obi major. Reef. 1 Spec. Stat. 279. Roma. Reef. 1 Spec. Stat. 299. Buka or Cyrus-bay, South coast of Rotti-island. 34 M. Mud, coral and Litho- thamnion. 1 Spec. Stat. ? 1 Spec. The specimens belong to the type (Tryon's fig. 8), and not to the varieties or species he has united under D. olearium. 2. Dolium costatum Menke. MENKE. Synops. Meth. App. 1828. Kiener. Coq. Viv. Vol. VII, Dolium, p. 11, PI. 4, fig. 6 (fasciatum var.). REEVE. Conch. Ie. Vol. V, Dolium, fig. 8. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. III, Dolium, p. 61, PI. 56, fig. 3; PI. 57, fig. 3. Tryon. Man. of Conch. Vol. VII, p. 263, PI. 4, fig. 19, 20. Stat. 131. Beo, Karakelang-islands. 13 M. Mud and sand. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand coral and mud. 1 Spec. Both specimens are very young. 3. Dolium fasciatum Bruguière. Bruguière. Dict. des Vers. N° 5. KlENER. Coq. Viv. Vol. VII, Dolium, p. 11, PI. 3, fig. 5. REEVE. Conch. Ie. Vol. V, Dolium, fig. 11. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. III, Dolium, p. 62, PI. 56, fig. 4. Tryon. Man. of Conch. Vol. VII, p. 263, PI. 3, fig. 16. Stat. 12. 7°i5'S., H5°is'.6E. Bali Sea. 289 M. Mud and broken shells. 2 Spec. I think it is not probable that this species has lived at a depth of 289 M., both specimens are dead shells, grey without bands, in other respects they exactly agree with speci- mens in my collection. 4. Dolium (Malea) pomum Linné. Linné. Syst. Nat. Ed. X, p. 735, N° 379. RUMPH. Amb. Rariteitkamer, p. 90, PI. 27, fig. B. KlENER. Coq. Viv. Vol. VII, Dolium, p. 12, PI. 5, fig. 8. 17 SIBOGA-EXPEDITIE XUX'/j. 17 I 2') Ki eve. I onch. Ie. Vol. III. Dolium, fi .. 6. KOSTER. Martini-Chemn. Conch. d. II, Vol. III, Dolium, p. 63, PI. 56, fig. 5. 6. rRVON. Man. VII, i>. 265, PI. 5, fig. 26. babu-island. Keef. 1 Spec. t. 142. Laiwui, North coast of Obi-major. 23 M. Mud. 1 Spec. The are of small size, the largest (from Stat. 142) measuring only 50 Mill., thou '11 developed. Pirula Lamarck. 1. Pirula gracilis Sowerby. AKkiiv. Cat. Coll. Tankerville. App. p. 17. KlENER. C>q. Viv. Vol. VI, Pyrula, p. 25, PI. 11 [Dussumieri). REEVE. (dnch. 1c. Vol. IV, Ficula, fig. 2 [Dussumieri). KOBELT. Martini-Chcmn. ('onch. Cab. Ed. II, Vol. III, Ficula, p. 10, PI. 1, lig. i [Dussumieri). TRYON. Man. of ('onch. Vol. VII, p. 266, PI. 5, fig. 30 [Dussumieri). SMITH. Journ. of Mal. Vol. III, 1894. Recent spec. of Pirula, p. 4. Stat. 2. Madura-strait. 67 M. Grey mud with some radiolariae. 3 Spec. The localities mentioned in the paper of Smith, are China and Bay of Bengal. Madura- strait may be considered as a connecting link, between these two rather remote stations. Fam. Cypraeidae Fleminsr. & • Cypraea Linné. 1. Cypraea isabella Linné. Linné. Syst. Nat. Ed. X, p. 722, X" 304. RUMPH. Amb. Rariteitkamer, p. 118, PI. 39, fig. G. KlENER. Coq. Viv. Vol. I, p. 87, PI. 48, fig. 3—5". REEVE. Conch. Ie. Vol. III, Cypraea, fig. 51. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 17, PI. 4, fig. -■ PI. 12, fig. 10, 11. TRYON. Man. >>( Conch. Vol. VII, p. 165, PI. 1, fig. 0, 7. tat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. it. 115. East side of Pajunga-island, Kwandang-bay. Reef. 1 Spec. Stat. 225. Lucipara-island. Reef. 2 Spec. Stat. 254. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. 2. Cypraea carneola Linné. LlNNÉ. Syst. Nat. Ed. X. p. 719, X" 290. RUMPH. Amb. Rariteitkamer, p. I 1 5, PI. 38. Fig. K. KlENER. Coq. Viv. Vol. I, p. 83, PI. 37, fig. 3. . Conch. Ie. Vol. III. Cypraea, fig. 19. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 14, PI. 3, fig. 8, 9; PI. -- • ... 2. .. Man. "t 1 onch. Vol. VII, p. 166, PI. 3. fig. 26—30. 18 127 Stat. 53. Bay of Nangamessi, Sumba. Up to 36 M. Coralsand. 1 Spec. Stat. 164. i°42'.5 S., i30°47'.5 E. near West coast of New Guinea. 32 M. Sand, small stones and shells. 1 Spec. Stat. 225. Lucipara-island. Reef. 1 Spec. Stat. 279. Roma. Reef. 1 Spec. 3. Cypraea talpa Linné. LlNNÉ. Syst. Nat. Ed. X, p. 720, N° 292. RUMPH. Amb. Rariteitkamer, p. 115, PI. 38, fig. I. KlENER. Coq. Viv. Vol. I, p. 79, PI. 12, fig. 2. Reeve. Conch. Ie. Vol. III, Cypraea, fig. 5. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 18, PI. 4, fig. 5, 6. TRYON. Man. of Conch. Vol. VII, p. 167, PI. 3, fig. 31 — 33. Stat. 16. Bay of Kankamaraan, South coast of Kangeang. Reef. 1 Spec. Stat. 133. Lirung, Salibabu-island. Reef. 1 Spec. Stat. 279. Ruma-Kuda-bay, Roma-island. Reef. 1 Spec. 4. Cypraea fimbriata Gmelin. Gmelin. Syst. Nat. Ed. XIII, p. 3423. Reeve. Conch. Ie. Vol. III, Cypraea, fig. 92. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 31, PI. 9, fig. 2, 3, PI- 13, ng. 5, 8. Tryon. Man. of Conch. Vol. VII, p. 168, PI. 5, fig. 76—78. Stat. 164. i°42'.s S., I30°47.5E. near West coast of New Guinea. 32 M. Sand, small stones and shells. 2 Spec. Stat. 213. Saleyer. Reef. 1 Spec. Stat. 234. Nusa-Laut-island. Reef. 1 Spec. Stat. 282. Between Nusa Besi and the N.E. point of Timor. 27 — 54 M. Sand, coral and Litho- thamnion. 1 Spec. Stat. 299. Buka-bay, South coast of Rotti-island. 34 M. Sand, coral and Lithothamnion. 2 Spec. 5. Cypraea contaminata Gray. Gray. Descript. Cat. Cypraea p. 11. KlENER. Coq. Viv. Vol. I, p. 101, PI. 57, fig. 5. Reeve. Conch. Ie. Vol. III, Cypraea, fig. 121. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 34, PI. 10, fig. 5, 8. Tryon. Man. of Conch. Vol. VII, p. 168, PI. 4, fig. 48, 49. Stat. 66. Bank between Bahuluwang and Tambolungan, south of Saleyer. 8 — 10 M. Dead coral, Halimeda, Lithothamnion. 1 Spec. Stat. 322. South of Tandjong Lajar, South coast of Bawean-island. 32 M. Coral. 1 Spec. Both specimens are slightly worn, the small brown dots on the dorsal side are conse- quently wanting, but the larger blotch is still present. 6. Cypraea microdon Gray. Gray. Zool. Journ. Vol. IV, p. 71. KlENER. Coq. Viv. Vol. I, p. 102, PI. 56, fig. 5; p. 92, PI. 56, fig. 4, 4a {chrysalis). Reeve. Conch. Ie. Vol. III, Cypraea, fig. 139. !9 [28 Weinkauff. Martini-Chcmn. Conch. Cab. Ed. II, Y<>1. Y. I ypraea, p. ioi, PI. 31, fig. 5,8. rRYON. Man ich. Vol. VII, p. lóg, PI. ?. ii:.;. ; - j . r 5 - !>■ '72, PI. 4, fig. 64, 65 [chrysalis). SMI1 11. Proc. Mal. >nd. Vol. \'. 1-. 1 Stat coa 1 "i Flores. Up t.> 40 M. Mi d and shelis. i Spec. Stat. 501. Pepela-ba >as1 ol Rotti-island. v M. Mud, coral and Lithothamnion. 1 Spec. The specimi bleached, but they agree in shape, in the narrow aperture and number :li. with .1 fresh specimen from .Mauritius; the rosy tips are still recognizable. -. 1 11 r se //us Gmelin. j. Syst. Nat. Ed. XIII, p. 341 1. KlENER. Coq. Viv. Vol. I, p. 99, PI. 33, fig. 4 — 40. TRYON. Man. of Conch. Vol. VII, p. [69, PI. 4, fig. 54, 55. D.u rZENBERG. Journ. Conch. iw<>2, p. 307. Stat. 213. South-island, near Saleyer. Reef. 1 Spec. Though Weinkauff (Martini-Chemn. Conch. Cal). Ed. II, Vol. V, p. 42, 43) considers this shell, named by him urcel/us, to be only a form of C'. felina Gmel., and suggests that the shell descriln.l by Gnd i .in. should l>e another species (Oweni Gray), I follow the opinion ••! I ».\L rZENBERG (1. C.). S. Cypraea quadrimaculata Gray. GRAY. Zool. Journ. Vol. I, p. 376. KlENER. Coq. Viv. Vol. I, p. 90, PI. 3, fig. 3. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 107. WEINKAUFF. Martini-Chemn. Conch. Cab. lul. II, Vol. V, Cypraea, p. 30, PI. 9, fig. 1, 4. TRYON. .Man. of Conch. Vol. VII, p. 167, PI. 4, fig. 40, 41. Stat. 213. Surroundings of Saleyer. Up to 36 M. Mud and mud with sand. 1 Spec. 9. Cypraea caurica Linné. LlNNÉ. Syst. Nat. Ed. X, p. 723, X" 313. RUMPH. Amb. Rariteitkamer, p. 115, PI. 3.S. fig. P. KlENER. Coq. Viv. Vol. I, p. 54, PI. 10, fig. 2. REEVE. Conch. Ie. Vol. III, Cypraea, lig. 46. WEI . Martini-Chemn. Conch. Cab. Ed. II, Vol. Y, Cypraea, p. 12, 34, PI. 3, fig. 4,5; PI. [O, fig. 2, 3. . Man. of Conch. Vol. VII, p. 171, PI. 5, fig. SS— 90. Stat. 89. Pulu Kaniungan Ketjil. Reef. 1 Spec. Stat. 22?. South point of Lucipara-island. Reef. 1 Spec. Martens (Rumphius Gedenkboek, Mollusca, j>. [5) quotes fig. 0 of Rumph for C. caurica and fig. P for variolaria (cruenta), but a look at the plate makes it clear, that fig. P belongs ! tys that his "Variolae" are of two kinds, he descrihes tirst the largesl '>w with at the sides (caurica) fig. 1'; than the smaller one with purple '^|Mlls [variolaria Lam.) ;xplication <<\ the plate, al tl)'- end of the chapter, the words " 1 V1' species, t ), red nd species is represented at fig. P", is in accordance with my views. 129 io. Cypraca (Aricia) caput scrpentis Linné. LlNNÉ. Syst. Nat. Ed. X, p. 720, N° 298. RUMPH. Amb. Rariteitkamer, p. 1 14, PI. 38, fig. F. KlENER. Coq. Viv. Vol. I, p. 112, PI. 69, fig. I. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 44. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 21, PI. 5, fig. 20, 21. Tryon. Man. of Conch. Vol. VII, p. 173, PI. 6, fig. 98—100. Stat. 172. Island of Gisser. Reef. 1 Spec. Stat. 299. Buka-bay, South coast of Rotti-island. 34 M. Sand, coral and Lithothamnion. 2 Spec. !|iBa\vean-island ? 2 Spec. 11. Cypraca (Aricia) arabica Linné. Linné. Syst. Nat. Ed. X, p. 718, N° 286. RUMPH. Amb. Rariteitkamer, p. 115, PI. 38, fig. M. KlENER. Coq. Viv. Vol. I, p. 105, PI. 17, fig. 1. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 2. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 51, PI. 16, fig. 3 — 6. Tryon. Man. of Conch. Vol. VII, p. 174, PI. 8, fig. 18, 19. Stat. 16. Bay of Kankamaraan, South coast of Kangeang. Shore. 1 Spec. Stat. 19. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- sand. 2 Spec. Stat. 34. Labuan Pandan, Lombok. Coralreef. 2 Spec. Stat. 37. Sailus Ketjil, Paternoster-islands. Reef. 1 Spec. Stat. 53. Bay of Nangamessi, Sumba. Up to 36 M. Coralsand. 1 Spec. Stat. 58. Seba, Savu. Reef. 2 Spec. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, sand and coral. 1 Spec. Stat. 131. Beo, Karakelang-islands. 13 M. Mud and sand. 1 Spec. Stat. 144. North of Salomakiëe-island. Reef. 1 Spec. Stat. 174. Waru-bay, North coast of Ceram. Reef. 1 Spec. Stat. 225. South of Lucipara-island. Reef. 2 Spec. Stat. 231. Amboina. Reef. 3 Spec. Stat. 261. Elat, West coast of Great-Kei-island. Reef. 1 Spec. Stat. 272. Dobo, Aru-islands. Reef. 1 Spec. ":iAmboina. 1 Spec. ""Bawean-island ? 2 Spec. ":iiHumboldt-bay, N. Guinea. (N. Guinea-Expedition 1903). 5 Spec. Very variable in size and shape and, though less, in markings. The smallest adult specimen, from Stat. 19, has a length of 36 MilL, the largest, from Stat. 225, of 63 Mill. I have seen however still smaller and larger specimens. 12. Cypraea (Aricia) moneia Linné. Linné. Syst. Nat. Ed. X, p. 723, N° 312. RUMPH. Amb. Rariteitkamer, p. 117, PI. 39, fig. C. KlENER. Coq. Viv. Vol. I, p. ,122, PI. 34, fig. 1. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 74. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 6j, PI. 20, fig. 1, 4. Tryon. Man. of Conch. Vol. VII, p. 177, PI. 10, fig. 46; PI. 11, fig. 51,52; PI. 23, fig. 60, 61, 63. 21 Stat. 13. Baj 1. Lom M. .Mud, coral and coralsand. 1 Spec. Stat. 60. Haii >amau-island. Reef. 1 Spec. .:. 91, [ ide, I ast coast of Borneo. i Spec. isl "I" X. (aünca. Keef. I Spec. 11 imen from Stat. ui is typical in shape, that from Stat. 33 is tnuch worn, those from S nall, the tubercles on the back are obsolete, but at the base they are present. va Lamarck iarck. An. s. vert. Ed. Desh. Vol. X, p. 510. NER. 1. c. p. 123, PI. 34, fig. 3. WEINKAUFF. 1. c. p. 68, PI. 20, fig. 2. Tryon. l.c. p. 178, PI. 23, fig. 62. Stat. 7. Near reef of Batjulmati (Java). 15 M. Coral and stones. 5 Spec. Stat. 71. 1'uki Barang, near Makassar. Shore. 1 Spec. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12M. Lithothamnion-bottom, sand and coral. 1 Spec. Stat. 193. Sanana-bav, Kast coast of Sula Bcsi. Reef. 1 Spec. The specimens from Stat. 7 are large and typical, the longest one has a length of 36 Mill. that from Stat. 193 is much smaller, and those from the other Stations are still smaller and less characteristic, they resemble the vars. atava and plumaria, both of RoCHEBRUNE, as figured by Tryon (l.c. PI. 23, fig. 64, 65 and 69). 13. Cypraea annulus Linné. LlNNÉ. Syst. Nat. Ed. X, p. j2$, N° 314. Rl mimi. Amb. Rariteftkamer, p. 117. PI. 39, fig. 5. KlENER. Coq. Viv. Vol. I, p. 124, PI. 34, fig. 2. Reeve. Conch. Ie. Vol. III, Cypraea, fig. 71. WEINKAl 1 1. Mirtini-Chcmn. Conch. Cab. Ed. II, Vol. V, Crypraea, p. 69, PI. 20, fig. 9, 12. TRYON. Man. of Conch. Vol. VII, p. 178, PI. 11, fig. 57, 59, 6l; PI. 23, fig. 70 — 72. Stat. 7. Xear reef of Batjulmati (Java). 15 M. Coral and stones. 11 Spec. Stat. 19. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. Ri ver-mud, coral, coral- sand. 2 Spec. Stat. 34. Labuan Pandan, Lombok. Coralrcef. 6 Spec. Stat. 37. Sailus Ketjil, Paternoster-islands. 27 M. Coral and coralsand. 1 Spec. Stat' 47. Bay of Bima, near South fort. Shore. 5 Spec. tat. Si. Pulu Sebangkatan, Borneo-bank. Reef. 1 Spec. it. 131. Beo, Karakelang-i^l ands. 13 M. Mud and sand. 1 Spec. Stat. 133. Lirung, Salibabu-island. Reef. 2 Spec. Stat. 169. Atjatuning, West coast of New Guinea. Reef. 2 Spec. Stat. 174. Waru-bay, North coast of Ceram. Reef. 1 Spec. Stat. 193. Sanana-bay, East coast of Sula Besi. keef. 10 Spec. Stat. 225. South of Lucipara-island. Reef. 1 Spec. li Bril near Makassar. Kraay don. 1 Spec. huizen-island near Batavia. 9 Spec. imens varj considerably in shape, size and colour, those from Stat. 7 are the largest specimen measuring 30 Mill. in length and iS in breadth. i3i 14- Cypraea (Luponia) tigris Linné. Linné. Syst. Nat. Ed. X, p. 721, N° 302. RUMPH. Arab. Rariteitkamer, p. 113, PI. 38, fig. A. KlENER. Coq. Viv. Vol. I, p. 4, PI. I, fig. I; PI. 45, fig. I; PI. 46, fig. I. Reeve. Conch. Ie. Vol. III, Cypraea, fig. 12. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 91, PI. 28, 29, 30, fig. 1. Tryon. Man. of Conch. Vol. VII, p. 180, PI. n, fig. 49, 50. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands. Sulu-archipelago. 12 M. Lithothamnion-bottom, Sand and coral. 2 Spec. Stat. 142. Laivvui, North coast of Obi Major. Reef. 2 Spec. Stat. 172. Island of Gisser. Reef. 1 Spec. Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 1 Spec. Stat. 213. Pulu Pasi near Saleyer. 1 Spec. 15. Cypraea (Luponia) vitellus Linné. Linné. Syst. Nat. Ed. X, p. 721, N° 300. RUMPH. Amb. Rariteitkamer, p. 115, PI. 38, fig. L. KlENER. Coq. Viv. Vol. I, p. 12, PI. 19, fig. 1. Reeve. Conch. Ie. Vol. III, Cyprae, fig. 14. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 38, PI. 11, fig. 6, 7, 10, 11. TRYON. Man. of Conch. Vol. VII, p. 182, PI. 13, fig. 72, jt,. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, sand and coral. 2 Spec. Stat. 131. Beo, Karakelang-islands. 13 M. Mud and sand. 1 Spec. Stat. 225. South of Lucipara-island. Reef. 3 Spec. 16. Cypraea (Luponia) lynx Linné. Linné. Syst. Nat. Ed. X, p. 721, N° 303. RUMPH. Amb. Rariteitkamer, p. 115, PI. 38, fig. N. KlENER. Coq. Viv. Vol. I, p. IO, PI. 25, fig. 2; PI. 38, fig. 2. Reeve. Conch. Ie. Vol. III, Cypraea, fig. 33. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 79, PI. 23, fig. 6, 7, 10, 1 r. Tryon. Man. of Conch. Vol. VII, p. 183, PI. 14, fig. 86, 87. Stat. 19. Bay of Labuan Tring, West coast of Lombok. 10 — 27 M. River-mud, coral, coral- sand. 2 Spec. Stat. 47. Bay of Bima. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 60. Haingsisi, Samau-island. Reef. 1 Spec. Stat. 89. Pulu Kaniungan Ketjil. Reef. 3 Spec. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, sand and coral. 1 Spec. Stat. 133. Lirung, Salibabu-island. Reef. 6 Spec. Stat. 225. South of Lucipara-island. Reef. 4 Spec. Stat. 250. Kur. Reef. 1 Spec. Varying in size; the specimens from Stat. 47, 89, 93 and 225 are very small and young, their identification consequently remains a little uncertain. 23 ij, Cypra tes Linné. I.iwr Syst. Nat. Ed. X. , V 31 1. RUMPII. Amb. Rarit r, p. n8, Sp. 5 {Casuaris Eijen Sp. 6, PI. 39, fig. Eï Rl nch. k. Vol. 111, Cypraea, fig. - Wei . Martini-Chemn. Conch. ('ab. Ed. II, Vol. V, Cypraea, p. 20, PI. 4, fig. 10, 12? !i. Vol. VII, p. [83, PI. 14, fig. 7. ,. Labuan Pandan, Lombok. Coralreef. 2 Spcc. Seba, Savu. Reef. 1 Spec. Haingsisi, Samau-island. Reef. 1 Spcc. Dongala, Palos-bay. Celebes. Shore. 1 Spec. Sta: Pulu Sanguisiapo, Tawi-Taui-islands, Sulu-archipelago. i:M. Lithothamnion-bottom, s.uul and coral. 1 Spec. Stat. 213. Saleyer. Reef. 1 Spec. Stat. 223. South of Lucipara-island. Reef. 2 Spec. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. Stat. 2S2. Between Nusa Besi and X. E. point of Timor. 27 — 54 M. Sand, coral and Litho- thamnion. 1 Spec. Amboina. 2 Spec. The very young specimen from Stat. 2S2 is of doubtful identification, the specimens from the Stations 93, 225 and Amboina are conchologically intermediate between the type and var. ovutn Gmel., they have the large brown spot on the back, hut not those near the anterior canal, the shape of the aperture however is in accordance with that of the type. var. ovum Gmclin. Gmei.in. Syst. Nat. Ed. XIII, p. 3412. KlENER. Coq. Viv. Vol. I, p. 50. PI. 29, fig. 4. TRYON. Man. of Conch. Vol. VII, PI. 14, fig. 88, 89. DAUTZENBERG. Journ. de Conch. 1902, p. 348. Stat. [9. 15ay «>f Labuan Tring, West coast of Lombok. 18 — 27 M. Rivcr-mud, coral, coral- sand. 1 Spec. Stat. ~\. Pulu Barang, ncar Makassar. Shore. 2 Spec. The specimens agree with the elucidations in Dautzenberg's paper, they have neither the large brown blotch, nor smaller brown spots near the front-end, but are provided with an orange streak between the teeth. is. Cypraea (Luponia) pyriformis Gray. I , '.',. Zool. Journ. I, p. 371. K11.M.R. Coq. Viv. Vol. I. fig. 42, PI. 55, fig. 2. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 32. Weinkai ii. Martini-Chemn. Conch. Cab. Ed. II, Vol. Y, Cypraea, p. 59, PI. iS, fig. 2, 3. . Man. of Conch. Vol. VII, p. [84, PI. 14. fig. 3, 6. tat. 285. South coast . .f Timor. \.\ M. On the limit between mud and coral. 1 Spec. 24 19- Cypraea (Luponia) Walker i Gray. Gray. Descr. Cat. Cypraeidae, p. n. KlENER. Coq. Viv. Vol. I, p. 33, PI. 14, fig. 3. Reeve. Conch. Ie. Vol. III, Cypraea, fig. 50^, b. WeinkAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 78, PI. 23, fig. 1, 4. Trvon. Man. of Conch. Vol. VII, p. 1S5, PI. 15, fig. IO; PI. 17, fig. 68. Stat. Jj. Borneo-bank. 59 M. Fine, grey coralsand. 1 Spec. Stat. 99. North-Ubian, Sulu-archipelago. 16 — 23 M. Lithothamnion-bottom. 5 Spec. Stat. 109. Pulu Tongkil, Sulu-archipelago. 13 M. Lithothamnion-bottom. 3 Spec. Stat. 164. i°42.5 S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 4 Spec. The suggestion of Mr. J. Brazier, that this species should live in deep water, has not been confirmed by the collection of the Siboga-Expedition. The specimens vary considerably in colour-pattern, that from Stat. 77 is much bleached, those from Stat. 99 have a broad brown band in the centre of the back, bordered by narrow zones of a light colour and a few spiral rows of brown blotches. A very young specimen from that locality, with scarcely any traces of teeth, is uniformly brown on the back, whitish near the produced spire and along the right margin of the aperture; those from Stat. 109 have but a few brown blotches near the dark central band (broken up in one specimen), that from Stat. 1 64 has only a single indistinct band ; the specimens from Stat. 3 1 3 are very similar ; these differences seem to be only individual, I have failed to recognize one of the described varieties amongst them. 20. Cypraea (Luponia) ziczac Linné. LlNNÉ. Syst. Nat. Ed. X, p. 722, N" 307. KlENER. Coq. Viv. Vol. I, p. 22, PI. 31, fig. 2a. Reeve. Conch Ie. Vol. III, Cypraea, fig. 97. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 94, PI. 28, fig. 10 — 13. Tryon. Man. of Conch. Vol. VII, p. 187, PI. 15, fig. 12, 13. Stat. 66. Bank between islands of Bahuluwang and Tambolungan, south of Saleyer. 8 M. Dead coral, Halimeda, Lithothamnion. 1 Spec. Stat. 99. North-Ubian, Sulu-archipelago. 16 — 23 M. Lithothamnion-bottom. 1 Spec. Stat. 313. East of Dangar- Besar, Saleh-bay. Up to 36 M. Sand, coral and mud, and reef. 3 Spec. The specimens belong to the colour-variety, with white lines arranged into distinct bands. 2 1 . Cypraea (Luponia) lutca Gronovius. GRONOVIUS. Zoophylac. fase. 3, PI. 19, fig. 17. KlENER. Coq. Viv. Vol. I, p. 40, PI. 14, fig. 4 [Humphreysiï). Reeve. Conch. Ie. Vol. III, Cypraea, fig. nor. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V. Cypraea, p. 93, PI. 28, fig. 6 — 9. Tryon. Man. of Conch. Vol. VII, p. 187, PI. 16, fig. 35, 36. Stat. 213. Saleyer. Reef. 1 Spec. The only specimen is a rather young one, with two white bands and a few brown spots on the back of the shell. 25 SIBOOA-EXPEDITIE XLIX'iJ. iS i 54 22. Cypra I IPH. Amb. Rariteitkamer, p. n8, PI. 39, fig. M. K11 ■ 93. PI- 3'i ":-,r- 3- Ki 1 Vol. III. Cyprai a, fig. 98. \\'i . Martini-Chemn. Conch. Cab. Ed. II, Vol. \', Cypraea, p. [6, PI. 4, fig. 1, 2. nch. Vol. VIII, p. 1S7, PI. ui, fig. 34. umu-Lumu-shoal, Borneo-bank. Shore. 1 Spec. 23. Cypraea (Luponia) clandestina Linné. LlNNÉ. Syst. Nat. Ed. XII, p. 1177. Kn m k. Coq. Viv. Vol. I, p. 30, PI. 31, fig. 4. Rei 11 onch. Ie. Vol. III. Cypraea, Til;. 106. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 81, PI. 24, fig. 1, 4. Tryon. Man. of Conch. Vol. VII. p. 187, PI. 16, fig. 37, 38. Stat. 60. Hain^sisi, Samau-island. Reef. I Spec. The specimen is very young, still in the Bulla -state, it displays very beautifully the red hair-lines, though not so strong as in the perhaps exaggerated figure of Weinkauff (1. c). 24. Cypraea (Luponia) crióraria Linné. Linné. Syst. Nat. lal. X, p. 723, X" 310. Kil NEK. Coq. Viv. Vol. I, p. 26, PI. 29, fig. I. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 81. WEINKA1 1 1. Martini-Chémn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 115, PI. 34, fig. 10, 11. TRYON. Man. of Conch. Vol. VII, p. 190, PI. 17, fig. 71, 72. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. 25. Cypraea (Luponia) »i i/ia ris Gmelin. Gmelin. Syst. Xat. Ed. XIII, p. 3402. KlENER. Coq. Viv. Vol. I, p. 59, PI. 8, fig. 2 [Lamarckii). REEVE. Conch. Ie. Vol. III, Cypraea, lig. 36. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 110, PI. 33, fig. 9, 12. TRYON. Man. of Conch. Vol. VII, p. 192, PI. 17, fig. 80. 163. Seget, West entrance Selee (Galewo)-strait. 29 M. Sand and stone, mixed uith mud. 1 Spec. Stat. 313. Dangai Bi ar, Saleh-bay. l'p to 36 M. Sand, coral and mud. 2 Spec. 26. Cypraea (Luponia) erosa Linné. Linné. Syst. Nat. lal. X. p. jz},, X" 315. RUMPH. Amb. Rariteitkamer, p. 117, PI. 39, fig. A. Kil "i- Viv. Vol. I. p. 53, PI. g .3. Rl 'nch. Ie. Vol. III. Cypraea, fit;. 43. ,1 •; 1 . Martini-Chemn. Conch. Cab. lal. II. Vol. V, Cypraea, p. 107, PI. ^, tig. 1—4. Man. "f Conch. Vol. VII, p. 192, PI. 18, fig. 90, 100, 1. 135 Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 1 Spec. Stat. 47. Bay of Bima, near South fort. Shore. 2 Spec. Stat. 89. Pulu Kaniungan Ketjil. Reef. 2 Spec. Stat. 91. Muaras-reef, inner side, East coast of Borneo. Up to 54 M. Hard cof alsarrd. r Spec. Stat. 133. Lirung, Salibabu-island. Reef. 1 Spee. Stat. 213. Saleyer. Reef. 1 Spec. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 3 Spec. Stat. 285. South coast of Timor. 34 M. Lithothamnion. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. "Amboina. 1 Spec. The specimens belong to the form with well-developed margins; those from Stat. 47 have red lines on the margins and the base, thus approaching the var. nebrites Melv. (Cat. Cypraea, Mem. and Proc. Manch. Soc. 1888, p. 223). 27. Cypraea (Lupoiiia) helvola Linné. LlNNÉ. Syst. Nat. Ed. X, p. 724, N" 316. RUMPH. Amb. Rariteitkamer, p. 117, PI. 39, fig. B. KlENER. Coq. Viv. Vol. I, p. 68, PI. 28, fig. 1. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 72. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 116, PI. 35, fig. 1 — 4. TRYON Man. of Conch. Vol. VII, p. 194, PI. 19, fig. 8, 9. Stat. 79''. Pulu Kabala-dua, Borneo-bank. Reef. 1 Spec. Stat. 81. Pulu Sebangkatan, Borneo-bank. Reef. 2 Spec. Stat. 89. Pulu Kaniungan Ketjil. Reef. 1 Spec. Stat. 172. Island of Gisser. Reef. 1 Spec. 28. Cypraea (Luponia) Jïaveola Linné. I LlNNÉ. Syst. Nat. Ed. X, p. 724, N" 320. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 95. TRYON. Man. of Conch. Vol. VII, p. 195, PI. 19, fig. 20 — 22. Dautzenberg. Journ. de Conchyl. 1902, p. 369. Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 2 Spec. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. Reef. 1 Spec. Stat. 96. South side of Pearl-bank, Sulu-archipelago. 15 M. Lithothamnion-bottom. 1 Spec. Stat. 99. North-Ubian. 16 — 23 M. Lithothamnion-bottom. 1 Spec. Stat. 248. Rumah Lusi, North-point of Tiur-island. Reef. 1 Spec. Stat. 2S2. Between Nusa Besi and N. E. point of Timor. 27 — 54 M. Sand, coral and Litho- thamnion. 2 Spec. Stat. 285. South coast of Timor. 34 M. Limit between mud and coral. 1 Spec. Stat. 299. Buka or Cyrus-bay, South coast of Rotti-island. Up to 36 M. Mud, coral and Lithothamnion. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 2 Spec. I have foliowed the quoted authors in occupying the name flavcola Lin. for this shell ; Weinkauff (Mon. Cypraea, p. 103) says that it should be only a variety of C. gangrenosa, and that the true C. Jïaveola Lin., might be a small variety of C. spurca Lin. It is no doubt nearly alliecl to the next species. 27 29. Cypra i Solander. SOI AM'i R. Dillwyn. Descr. Cat. I, p. 4.65. K11 • Vol. I. p. 50, PI. 50. fig. 2. Rl nch. Ie. Vol. III. Cypraea, fig. 96. WElNKAi FF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 121. PI. 36, fig. 2. 3. .■ h. Vol. VII, p. [95, PI. 19, fig. [8, 19. tt. 33. Bay of Pidjot, Lombok. 22 M. and lcss. Mud. coral and coralsand. 1 Spec. Pus tularia) staphylea Linné. I.inm . Syst. Nat. Ed. X, p. 725, N" 324. KlENER. Coq. Viv. Vol. I. p. 48, PI. .36, fig. 2. Rei n I onch. Ie. Vol. 111, Cypraea, fig. 82/'. WEINKAUFF. Martini-Chemn. Conch. Cab. VA. II, Vol. V, Cypraea, p. 117, PI. 35, fig. 5— S. lk\"\. Man. of Conch. Vol. VII, p. 196, PI. 20, fig. 39, 40. Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 1 Spec. Stat. 60. Haingsisi, Samau-island. Reef. 1 Spec. Stat. 66. Bank between Bahuluwang and Tambolungan, South of Saleyer. S M. Dead coral, Lithothamnion. 2 Spec. Stat. 285. South coast of Timor. 34 M. Limit between mud and coral. 1 Spec. Stat. 306. 8 27 S., i22°54'.5E. Flores Sea. 247 M. Sandy mud. 1 Spec. The shell from Stat. 306 is a worn, quite bleached specimen, this accounts for the great depth at which it has been dredged, it wil] most probably have been washed down. 3 1 . Cypraea f Pustularia) limacina Lamarck. LAMARCK. Aii. s. vert. Ed. II, Vol. X. p. 536. KlENER. Coq. Viv. Vol. I, p. 47, PI. 35, fig. I; PI. 22, fig. 2. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 82a [staphylea var.). TROSCHEL. Gebiss der Schnecken. Vol. I, p. 213, PI. 17, fig. 19. TRYON. Man. of Conch. Vol. VII, p. 196, PI. 20, fig. 42 — 44 (interstiiuta). Stat. 99. North-Ubian. 16 — 23 M. Lithothamnion-bottom. 1 Spec. Though I must admit that the characters of the radnla are often insufficiënt to decide upon the specific value of species, the differences between the radula of the species under consideration and the preceding one, seem to be of too much importance, to consider them as varieties "I" one and the same species. It would be interesting to examine the radulae of mens which conchologically are intermediate, aml to make out, to which of the two forms the nearest allies. 32. Cypraea Pustularia) nucleus Linné. LlNNl . Syst. Xat. Ed. X. p. 724. \ ' 523. :iii. Aml». Rariteitkamer, p. 11S, PI. 39, fig. I. iq. Viv. Vol. I, p. 127, PI. 3, lig. 2. inch. Ie. Vol. III. < lypraea, fig. 70. 2 8 137 WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 130, PI. 37, fig. 13, 14. Tryon. Man. of Conch. Vol. VII, p. 197, PI. 20, flg. 48, 49. Stat. 53. Bay of Nangamessi, Sumba. Reef. 1 Spec. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 2 Spec. Trivia Gray. 1. Trivia oryza Lamarck. LAMARCK. An. s. vert. Ed. II, Vol. X, p. 543 [Cypraea). RüMPH. Amb. Rariteitkamer, p. 118, PI. 39, fig. P. KlENER. Coq. Viv. Vol. I, Cypraea, p. 140, PI. 52, fig. 2, 2a. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 140. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 153, PI. 5, fig. 12, 13; PI. 41, fig. 13—16. Tryon. Man. of Conch. Vol. VII, p. 200, PI. 21, fig. 82, 83. Stat. 58. Seba, Savu. Reef. 1 Spec. Stat. 213. South-island near Saleyer. Reef. 1 Spec. Stat. 234. Nalahia, Nusa-Laut-island. Reef. 1 Spec. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 1 Spec. Stat. 250. Kilsuin, West coast of Kur-island. Reef. 1 Spec. forma minor. Stat. 37. Sailus Ketjil, Paternoster-islands. 27 M. and less. Coral and coralsand. 1 Spec. Stat. 66. Bank between islands of Bahuluwang and Tambolungan, South of Saleyer. 8 — 10 M. Dead coral, Halimeda and Lithothamnion. 4 Spec. Stat. 95. 5°43'.s N., H9°4o'E. Sulu Sea. 522 M. Stony bottom. 2 Spec. Stat. 98. 6°9'N., i20°2i'E. Sulu Sea. 350 M. Sand. 2 Spec. Stat. 133. Lirung, Salibabu-island. Up to 36 M. Mud and hard sand. 1 Spec. Stat. 204. Between islands ofWowoni and Buton, Northern entrance of Buton-strait. 75 — 94 M. Sand with dead shells. 1 Spec. Stat. 225. South Lucipara-island. Reef. 1 Spec. The specimens which I have united under the name minor are considerably smaller than the typical ones, the largest having only a length of 71/.,, the smallest of 5 Mill. Some of them show a tendency to become rostrate, and thus form a passage to the next variety. var. scabriuscula Gray. Gray. Zoological Journal. Vol. III, p. 364. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 152, PI. 41, fig. 10, 11. Tryon. Man. of Conch. Vol. VII, p. 200, PI. 21, fig. 79. Stat. ij. Sailus-Ketjil, Paternoster-islands. 27 M. and less. Coral and coralsand. 6 Spec. Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 3 Spec. Stat. 59. Western entrance Samau-strait. 390 M. Coarse coralsand with small stones. 3 Spec. Stat. 66. Bank between islands of Bahuluwang and Tambolungan. 8 — 10 M. Dead coral, Halimeda and Lithothamnion. 2 Spec. Stat. 91. Muaras-reef, inner side, East coast of Borneo. 54 M. Hard coralsand. 1 Spec. Stat. 99. North-Ubian. 16 — 23 M. Lithothamnion-bottom. 1 Spec. Stat. 144. North of Salomakiëe-(Damar)-island. 45 M. Coral bottom and Lithothamnion. 1 Spec. Stat. 240. Banda. 9 — 36 M. Lithothamnion. 1 Spec. r38 This variety lias bi as a separate species, as a variety and even merely as a synonym, I have applied the name to specimens, which are conspicuously beaked, but they are connected to the type by the former var.; only mie specimen from Stat. 37 is of nearly typical being . MUI. in length, the other specimens may belong to Gray's var. |3 minor, though liis type of that variety, seems to be more elongate ("'/. of an inch long, and ' , of an inch Gray I. ( ;ecta Mighels. Mighels. Proc. Boston Soc. nat. hist. Vol. II, 1845, p. 24. Kil l oq. Viv. Vol. I, Cypraea, p. 149, PI. 54, fig. 5, $a [hordacea). WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. Y, Cypraea, p. 162, PI. 43, fig. 5, 8 •■ TRYON. Man. of COnch. Vol. VII, p. 200, PI. 21, fig. 84, 85. Stat. 220. 1'asir Pandjang, West coast of Binongka. 55 M. Coralsand. 1 Spec. The only specimen is very small, having only a length of abont 3'/, MUI. 3. Trivia gloöosa Gray. Gray. Descript. Catalogue p. 14. REEVE. Conch. Ie. Vol. III, Cypraea, fig. 152. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 151, Pi. 14, fig. 6, 7. TRYON. Man. of Conch. Vol. VII, p. 200, PI. 21, fig. 92, 93. Stat. [64. i°42'.5 S., i30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 1 Spec. |)\t rzENBERG (Journ. de Conch. Vol. 50, p. 382) records this species from New Caledonia and Lifu, on the authority of Rossiter and Lambert. 4. Trivia örevissima Sowerby. SOWERBY. Thes. Conch. Vol. I\', Cypraea, p. 47, PI. 37, fig. 523, 524. TRYON. Man. of Conch. Vol. VII, p. 204, PI. 21, fig. 90, 91. Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. In the original description SoWERBY says : "sulco dorsali nullo ant inconspicuo"; TRYON has located tin- species in his section without dorsal impression. In consequence I cannot agree with tin- view that Cypraea pilitla Kiener should be a synonym; KlENER says that the dorsal impression is rather deep in his species. WEINKAUFF (Conch. Cab. lul. 11, Cypraea, p. 1501 says also, dealing with C. pilula: "linea dorsali impressa" and adds in a footnöte that the lithographer forgotten it in the figure. The Siboga-specimen has a very shallow impression, much less picuous than the specimen of the former species. Trivia abyssicola n. sp. PI. XI, lig. i. >tat. 59. Western entrance Samau-strait. 390 M. Coarse coralsand with small stones. 1 Spec. V, [20°21 1;.. Siilu Sea. 350 M. Sand. 1 Spec. 8 X., 121° 19' E. Sulu Sea. 275 M. Coralbottom. 3 Sp< 3° 139 Shell ovate, moderately inflate, white, pellucid, right margin thickened, extremities slightly produced, especially the anterior one, with rather numerous ribs, of which the majority runs from one side to the other and a few intermediate ones, no dorsal sulcus. Aperture rather wide, especially tovvards the front, slightly arcuate, its right margin but little inflected, thickened exteriorly, strongly crenulated by the ribs, which form from 1 8 to 21 teeth ; anterior sinus wide, posterior one narrower by a crenulated callus, columellar margin not thickened, with about 20 teeth, the interstices of the ribs of both the right and columellar margin granulous, the inter- stices on the back smooth. Long. 7, lat. 5, alt. 4 Mill. The species resembles amongst the white ones without dorsal impression, in some respects T. pellucidiila Gaskoin, which has however much more and finer ribs. One of the specimens from Stat. 105 contains the soft parts and may serve as a proof that the species lives at the recorded great depth. 6. Trivia pcmcicostata n. sp. PI. XI. fig. 2. Stat. 95. 5°43'.5 N., ii9°4o'E. Sulu Sea. 522 M. Stony bottom. 3 Spec. Shell shortly ovate, swollen, greyish-white (perhaps flesh-coloured in life), with few strong ribs and rather wide, smooth interstices, considerably broader than the ribs; no dorsal impression, the majority of the ribs runs from one side to the other, with a few intermediate ones which don't reach the centre. Aperture rather wide, running on the right side of the ventral face, slightly wider at the anterior end. Right margin relatively thin, with a thickened rib exteriorly and only 13 teeth, columellar margin with about 14 teeth, slightly excavated interiorly, front sinus large, posterior one narrower, with a small callosity on the left side, anterior end slighty rostrate or produced ; interstices of the ribs on the apertural margins granose. Long. S1/., lat. 63/4, alt. 5 7, Mill. This and the next species resemble some of the South-African species by their aperture, which lies on the right side of the base, and is larger than usually in Trivia. In sculpture, but not in shape, it resembles T. Bitttoni Melv. (Ann. Mag. Nat. Hist. Ser. 7, Vol. VI, 1900, p. 209) this species is however more regularly ovate in outline, the dorsal view of the new species being subtrigonal, in consequence of the blunt posterior part, in Buttoni the aperture is much narrower and is situated more centrally. 7. Trivia sibogae n. sp. PI. XI, fig. 3. Stat. 105. 6°8'N., 1210 19' E. Sulu Sea. 275 M. Coralbottom. 3 Spec. Shell shortly-ovate, globose, thin, light flesh-coloured, with numerous rather strong ribs and smooth interstices, which are but a little broader than the ribs, no dorsal impression; several of the ribs don't reach the centre, while others run from one side to the other. Aperture rather wide, slightly enlarged towards the front part, placed at the right side of the ventral face. Right margin slightly involved, strongly thickened exteriorly, its inner margin with 19 or 20 teeth; 31 I p I columellar margin with about :i teeth and a crenulated callosity at its upper part, bordering the posterior, rather wide sin ' rior sinus slightly larger and produced, columellar margin 1 interiorly, towards the anterior sinus; margins of the aperture granulose in the interstices Long. 12, lat. 9, alt. 8 , MUI., smaller specimen Long. e,1,,, lat. 71/.,, alt. 61/, MUL forma minor. PI. XI, fig. 4. .5 V, ii 90 40' E. Sulu Sea. 522 M. Stony bottom. 4 Spec. :, 1;. I is-Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 1 Spec. from Stat. 95 are stil] smaller, being only 7'/, MUI. in length, but agree jn m ts, in sculpture with the type, however the ribs are slightly coarser, the teeth of the right margin less numerous (15 and 17), the other specimens and that from Stat. 315 are a doubtful, as they are still considerably smaller, length only 6 MUL, the aperture is not so and the right margin thicker-, as they are dead shells, I prefer to keep them under one name with the variety, instead of describing a new species on a few gradual dirferences. This species with its variety, differs from the former one, by its much more numerous ribs with numerous intermediate ones, the larger number of teeth and inflated shape. Erato Risso. 1. Erato gallinacea (Hinds Mss) Reeve. REEVE. Conch. Ie. Vol. XV, Erato, fig. 7. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Erato, p. 150, PI. 24, fig. 14. 15. TRYON. Man. of Conch. Vol. V, p. 10, PI. 4, fig. 46. Stat. 37. Sailus Ketjil, Paternoster-islands. Up to 18 M. Coral and coralsand. 2 Spec. Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 25S. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 1 Spec. The specimens agree very will with the figures and descriptions, but they have small granules on the spire and towards the base of the shell. Fam. Amphiperasidae Adams. Amphiperas Gronovius. 1. Amphiperas ovum Linné. LlNNÉ. Syst. Nat. Ed. X, p. 72;, X' ^z~ . I: ;in. Amb. Rariteitkamer, p. 115, PI. 38, fig. Q. Kii ' ■ oq. Viv. Vol. I. Ovula, i>. 3, PI. t and PI. 3, tig. 5 [pviformis). REEVE. Conch. Ie. Vol. XV, Ovulum, fig. 3. WE1NKAI FF. Martini-Chemn. Conch. Cab. Ed. II. Vol. V, Ovula. y. [68, Tl. 44, fig. 2, 4, 5. Tryon. Man. of 1 onch. Vol. VII, p. 246, PI 1. fig. 11. 12. Stat. 213. Saleyer. Keef. 1 Spec. t. 231. Amboina. Keef. 1 Spec. 1. Pepela-bay, East coast of Rotti-island. 22 M. Mud, coral and Lithothamnion. 1 Spec. 32 I4I Both specimens are very young; a figure after a living animal has been given in Monograph L of this work, amongst the Opisthobranchiata, PI. V, fig. 21. 2. Amphiperas lacteum Lamarck. LAMARCK. An. s. vert. Ed. II, Vol. X, p. 469. KlENER. Coq. Viv. Vol. I, Ovula, p. 8, PI. 6, fig. 1. REEVE. Conch. Ie. Vol. XV, Ovulum, fig. 1. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 170, PI. 44, fig. 1, 2. TRVON. Man. of Conch. Vol. VII, p. 247, PI. 2, fig. 2, 23, 24. Stat. 66. Bank between islands of Bahuluvvang and Tambolungan, South of Saleyer. 8 M. Dead coral, Halimeda, Lithothamnion. 2 Spec. Stat. 131. Beo, Karakelang-islands. Reef. 1 Spec. I think Tryox is right in uniting A. semistriatum with this species. Indeed I have never seen fresh specimens of A. lactcicm, without more or less impressed striae at both extremities of the shell. 3. Amphiperas padieum A. Adams. ADAMS. Proc. Zool. Soc. Lond. 1854, p. 131. REEVE. Conch. Ie. Vol. XV, Ovulum, fig. 6. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 172, PI. 45, fig. 3, 4. Trvon. Man. of Conch. Vol. VII, p. 247, PI. 2, fig. 29—31. Stat. 2. Madura-strait. 56 M. Grey mud with some radiolariae. 1 Spec. Stat. 98. 6°9'N., i20°2i'E. Sulu Sea. 350 M. Sand. 1 Spec. Stat. 285. South coast of Timor. 36 M. Limit between mud and coral. 1 Spec. The specimens are very small, that from Stat. 285 measures only 8 Mill. in length, that from Stat. 98, which is the largest, 11 Mill.; this latter specimen, which may have been washed down to that considerable depth, is bleached and shows only traces of striae on both extremities, which are more distinct on the two other specimens; this latter character reminds A. ealedoniciim Crosse, but that species has been described as "striated", without the restriction that this should only be at the extremities. Now of the specimens under consideration, that from Stat. 98 is nearly quite smooth, with only a few striae at the posterior extremity and perhaps one or two at the anterior one, that from Stat. 285 has anterior and posterior striae and is smooth at the central part of the back, and that from Stat. 2 has also a few indistinct striae on the back, but it is not decussated, as it should be in A. ealedonicum, nor can I detect brown spots on the back, for the spots I see on the last-named specimen, seem to be accidental. 4. Amphiperas margarita Sowerby. Sowerbv. Spec. Conchyl. Vol I, part I, Ovulum, p. 4, fig. 19, 20. KlEXER. Coq. Viv. Vol. I, Ovula, p. 11, PI. 6, fig. 4. REEVE. Conch. Ie. Vol. XV, Ovulum, fig. 10. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 145, PI. 46, fig. 2, 3. TRVOX. Man. of Conch. Vol. VII, p. 248, PI. 2, fig. 34, 35. 33 SIROGA-EXPED1TIE XLIX1/'. " 19 142 Stal ■'■ l ■"•'1 -11"1 shells. i Sp St.it. 164. 1 Halmahera Sea. 32 M. Sand, small stones and shells. 1 Spec. ir, Saleh-bay. \'\> to 36 M. Sand, coral and mud. 1 Spec. nen from Stat. 164 measures 10 MUI. in length, that from Stat. 313 onlj 8 Mill. nnum Adams «K; Reeve. and Reeve. Voy. Samarang. Moll. p. 22, PI. 6, fig. 8. mch. Ie. Vol. XV, Ovulum, fig. 21. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II. Vol. \', Ovula, p. [82, PI. 47, fig. 5, 8. Man. of Conch. Vol. VII, p. 249, PI. 3, fig. 59, 60, 74. Stat. 252. Neai 1 aam-island. 27 M. Coralsand. 1 Spec. o. Amphiperas roseomaculatum n. sp. PI. XI, fig. 10. St.it. 98. 6°9'N., I20°2i E. Sulu Sca. 350 M. Sand. 1 Spec. St.it. 104. 1 42.5 S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 1 Spec. Shell small, pyriform, strongly angular on the back, the extremities elongate, thin, transparent white, with rose-coloured, irregular spots, arranged in three bands, one near the spire, one near the centre before the angle, the third near the anterior part, moreover the extremities are rosetinted. Sculpture consisting of rather broad, waved, impressed striae, which are shallow, but at least half as broad as the lirae, they are crossed by fïne growth-striae, which are partly ^tnmger, so as to render the surface here and there cancellated; the angle is placed on the posterior half, the shell is rapidly contracted towards the posterior part, regularly contracted towards the anterior part. Aperture narrow, angular, with a short canal at both extremities; outer margin thickened, with numerous fine teeth on the front part, much stronger towards the spire, where they cross the thickened margin and render it crenulate on its external margin, 3 visible in the dorsal view; columellar margin with a crenulate callus behind, a fold borders the front canal. this margin is excavated internally; a thin layer of enamel covers the columellar of the shell. Long. 83 „ lat. 5 Mill. This species is nearly allied to A. concinnum, but differing in many particulars, the shell angulate, more rapidly contracted towards the spire, a line from the angle of the towards the spire being nearly straight in A. concinnum, strongly excavated in the new are much r, the lirae narrower, the teeth of the outer margin are thinner and different in colour. Tl men from Stat. 164 is still young, the teeth on the thinner margin are not Xmphiperas striatulum Sowerby. hyliorum. Vol. I, part 1. Ovulum, p. 7. fig. 38. nch. Ie. Vol. XV, ovulum, fig. 28. 34 H3 Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 186, PI. 48, fig. 2, 3. Trvon. Man. of Conch. Vol. VII, p. 250, PI. 3, fig. 76, 77. Stat. 164. i°42'.5 S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 3 Spec. The three specimens are slightly different from each other, the smallest agrees with the original description, being small and white, however with orange-coloured extremities (perhaps Sowerby's specimen was a bleached one), the other adult one is larger but agrees with the descriptions of Reeve and Weinkauff, the thircl is a young shell, with a thin right margin ; its colour is white on the ventral side, light orange-red on the back, with 3 white bands; perhaps this depends on age. I can see no reason to distinguish this juvenile specimen by a new name, only on partly different colour. 8. Amphiperas (Cyphoma) f or mostim Adams & Reeve. Adams & Reeve. Voy. Samarang, Moll. p. 22, PI. 6, fig. 6. Reeve. Conch. Ie. Vol. XV, Ovulum, fig. 39. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 189, PI. 48, fig. 10, n. Trvon. Man. of Conch. Vol. VII, p. 251, PI. 4, fig. 15, 16. Stat. 164. i°42'.5 S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 1 Spec. Stat. 213. Saleyer. 9 — 34 M. Mud and mud with sand. 4 Spec. Stat. 310. 8°3o'S., ii9°7'.5 E. Flores Sea. 73 M. Sand with few pieces of dead coral. 1 Spec. One of the specimens from Saleyer, with the living animal, has been figured in the Monograph on the Opisthobranchiata of this work, on Plate 5, fig. 20. 9. Aitiphiperas (Cyp/toma) Scmperi Weinkauff. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 190, PI. 48, fig. 14, 15. REEVE. Conch. Ie. Vol. XV, Ovulum, fig. 37 {hordaceuin). TRYON. Man. of Conch. Vol. VII, p. 251, PI. 4, fig. 17, 18; PI. 5, fig. 19. Stat. 240. Banda. Reef. 2 Spec. Stat. 315. East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 1 Spec. Weinkauff (1. c.) calls this species O. Sempieri, evidently by error, for in his Catalogue of the genus Ovula (Jahrb. der deutschen Mal. Gesellsch. 1S82, p. 174) he writes the name Semperi. The specimen from Stat. 315 is more typical, purplish, with narrow aperture; those from Banda are pale yellow, with larger aperture, like Tryon's fig. 19. 10. AmpJiiperas (Radius) volva Linné. Linné. Syst. Nat. Ed. X, p. 725, N° 32S. KlENER. Coq. Viv. Vol. I, Ovula, p. 26, PI. 4, fig. 1. Reeve. Conch. Ie. Vol. XV, Ovulum, fig. 41. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 196, PI. 50, fig. 4, 5. TRYON. Man. of Conch. Vol. VII, p. 252, PI. 4, fig. 94, 95. 35 144 tnd, coral. i Spec. Stat ' in Jaan, Kei-islands. 90 M. Sand, coral and shells. 1 Spec. 1 . Java Sea. 88 M. Fine, yellowish-grey mud. 1 Spec. 11;. men from Stat very young. 11. philippinarum Sowerby. ■ ■•. Zool. Soc. 1848, p. 136. nch. fc. Vol. XV, Ovulum, fig. 46. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 199, PI. 51, fig. 2, 3. Man. of' Conch. Vol. VII, p. 252, PI. 4, fig. 100, 1. Stat. 273. Pulu Jol. ui, East coast of Aru-islands. 13 M. Sand and shells. 5 Spec. Stat. 310. 8°30'S., II9°7'.5E. Flores Sea. 73 M. Sand with few pieces of dead coral. 1 Spec. The specimen from Stat. 310 is still very young and ;i little doubtful, those from 273 are fine and adult. I think Tryon has gone too far in uniting so many species to A. philippinarum, so I have recorded the two next forms as separate species. The radula is long, yellowish-brown and consists ut a large number of transverse rows >■{ teeth. The rhachidian tooth (R) has a broad sub-quadrangular body with convex upper and basal margin, a long sharp median denticle and 3 smaller ones on each side, the laterals (1) have an elongate body ending in a tail on the distal side and a tricuspid cusp, composed of a very large central denticle and a small one on each side, the uncini have the ordinary comblike structure, the inner one has 15 denticles, of which the majority is simple, only a few <>f the distal ones and sometimes one or two others are bifid, the denticles of the outermost of the uncini are as a rule bifid, in a few I see three cusps, the number of denticles is about 40, with a knoblike one at the distal extremity. 12. Amphiperas Radius, An^asi (Adams) Reeve. R.EEVE. Conch. Ie. Vol. XV, Ovulum. fig' 43. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 199, PI. 51, fig. 5, 8. TRYON. Man. of Conch. Vol. VII, p. 252, PI. 4, fig. 3, 4 [philippinarum pars). Stat. 104. C42.5S., i3o047.; E. Halmahera Sea. 32 M. Sand, small stones and shells. 1 Spec. i. 273. Pulu Jedan, East coast of Aru-islands. 13 M. Sand and shells. .( Spec. Stat. 315. East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 1 Spec. The specimen \v<>\n Stat. 164 is a dead shell with impressed striae over the whole surface, this niay however depend on the circumstance that the shell is slightly worn, as I see traces of striae in a fresh but young specimen from Stat. 273. The shell is in comparison much narrower than the preceding one, the shape is more elegant, in fresh specimens the tips are slightlj rosy. The radula resembles in many respects that of the former species. The rhachidian tooth 1 sub-quadrangular body, with a long median denticle and two smaller ones at each 1 | with their tailed body, have also a long cusp with one smaller denticle rr, two very small unes on the outer margin. The uncini are comblike, with usually few bifid denticles amongst the inner om-s and bi- and trifid in the outer ones. 36 '45 As far as may be judged from a single radula of each species, its characters, in connection with the conchological ones, are favorable to the specific distinctness of the two forms. 13. Amphiperas (Radius) deflexum Sowerby. SOWERBY. Proc. Zool. Soc. Lond. 1848, p. 136. Reeve. Conch. Ie. Vol. XV, Ovulum, fig. 56. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 206, PI. 52, fig. 6, 7. Tryon. Man. of Conch. Vol. VII, p. 252, PI. 4, fig. S. Stat. 98. 6°9'N., 120° 21' E. Sulu Sea. 350 M. Sand. 1 Spec. Stat. 213. Saleyer. Reef. 1 Spec. The specimen from Saleyer is a fine, adult one, that from Stat. 98 is worn and partly broken, consequently it remains doubtful; probably washed down. 14. Amphiperas (Radius) birostre Linné. LiNNÉ. Syst. Nat. Ed. XII, p. 1182. KlENER. Coq. Viv. Vol. I, Ovula, p. 24, PI. 5, fig. 1. Reeve. Conch. Ie. Vol. XV, Ovulum, fig. 45. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 200, PI. 5, fig. 22, 23. Tryon. Man. of Conch. Vol. VII, p. 253, PI. 4, fig. 10, 11. Stat. 164. i°42'.5 S., i30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 2 Spec. Stat. 240. Bar.da. 9 — 45 M. Black sand, coral. 1 Spec. . Stat. 273. Pulu Jedan, East coast of Aru-islands. 13 M. Sand and shells. 2 Spec. One of the specimens from Stat. 164 is young, the other though by its thickened peris- tome evidently nearly adult is very small, measuring only 23 Mill. in length, those from Stat. 273 are typical. 15. AmpJiipcras (Ncosimnia) secale Sowerby. SOWERBY. Species Conchyliorum. Vol. I, Part I, Ovulum, p. 8, fig. 56. REEVE. Conch. Ie. Vol. XV, Ovulum, fig. 66. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 210, PI. 53, fig. 6, 7. Tryon. Man. of Conch. Vol. VII, p. 254, PI. 5, fig. 28, 29. Stat. 253. 5°48'.2 S., I32°I3'E. Arafura Sea. 304 M. Grey clay, hard and crumbly. 5 Spec. The depth at which the specimens have been captured, makes a somewhat exceptional appearance amongst the other species of the genus1); the specimens contain the soft parts and so one may conclude that they will have lived on the collecting-ground. The rhachidian tooth (R) of the radula has a broad, angular body, with a rounded basal line, its cusp has one large median denticle and on each side four smaller ones; the lateral tooth (1) has a rhombic shape with a taillike process on the distal side of the body and a long cusp with four smaller ones on the visible distal side of the reflected margin; the uncini have the family-character, the denticles of the outer ones are bifid and trihd. 1) Those from Stat. 98 probably having been washed down. 37 > I" Calpurnus Montfort. i. i Linné. PI. XV, fig. 10. I ■■,!. X. p. 726, N° 330. • il. Aml'. Rariteitkamer, p. 114. PI. 38, fig. II. Kil V iv. Vol. I. < >vula, p. ;. PI. 2, fig. 3. Rl nch. lc. Vol. XV, ( (vulum, fig. Wl ■ Martini-Chemn. Concli. Cab. Ed. II. Vol. Y, Ovula, p. 171, Tl. A, fig. 7; PI. 44, . Man. of Conch. Vol. VII, p. 256, PI. 5. fig. 56—58. Stat. 131. Beo, Karakelang-islands. Reef. o Spec. t. 261. 11. it. West cnast of Great-Kei-island. Reef. 1 Spec. Stat. 301. Pepela-bay, East coast of Rotti-island. Reef. 1 Spec. According t<> Tryon the radula of this species is still unknown, and I am not aware that it lias since been described. lts location amongst the Amphiperasidae has even been doubtfnl. In an old radula of tliis species trom Amboina I see that by the characteristic mmblike uncini the ^enus belongs without doubt to that family. The teeth of the central field are however sufficiently different from its allies to consider the genus Calpurnus as a valid one. The rhachidian tooth R has a broad body, with two wings near the base and a very large central cusp, with one or two small denticles at its base. The laterals (1) have a subquadrangular body and a very long archlike cusp, with a small denticle about halfway; these teeth are quite different from those of other species of this family figured by Troschel. Fam. Strombidai . Strombus Linné. i . Strombus canarium Linné. Linné. Syst. Nat. Ed. X, p. 745, N° 43S. RUMPH. Amb. Rariteitkamer, p. IIO, PI. 36, fig. X. Kil NER. ('oq. Viv. Vol. III, Strombus, p. 33, PI. 29, fig. 1. KÜSTER. Martini-Chemn. Conch. Cab. Ld. II. Vol. IV, Strombus, p. 43, PI. 7, fig. 4. REEVE. Conch. Ie. Vol. VI, Strombus tig. 46^. TRYON. Man. of Conch. Vol. VII, p. 1 10, PI. 2, fig. 18, 19? Stat. 213. Saleyer. Reef. 1 Spec. nen is not quite adult, the peristome is still rather thin; it is covered l>v a nparatively thick fibrous epidermis. 2. Strombus isabella Lamarck. \n. s. vert. Ld. II, Vol. IX, p. 700. q. Viv. Vol. III. Strombus, p. 32, PI. 25, fig. 2. Martini-Chemn. Conch. Cab. Ld. II, Vol. IV. Strombus, p. 41. PI. 7. lig. 3. 38 147 Reeve. Conch. Ie. Vol. VI, Strombus, fig. 51. Tryon. Man. of Conch. Vol. VII, p. 110, PI. 2, fig. 20 [canarium var.). Stat. 4. Djangkar (Java). 9 M. Coarse sand. 1 Spec. Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 2 Spec. The specimen from Stat. 4 is very young, those from Stat. 33 are fine and adult, the largest one has a shell of 70 Mill. in length, both are covered on the back of last vvhorl by a fibrous epidermis, resembling that of the former species, but not so thick. Tryon has united the two species and Troschel has found no differences in the radulae. In accordance with the majority of authors, I have kept them separated. 3. Stromens (Euprotomus) lentiginosus Linné. Linné. Syst. Nat. Ed. X, p. 743, N° 427. RUMPH. Amb. Rariteitkamer, p. in, PI. 37, fig. Q. KlEXER. Coq. Viv. Vol. III, Strombus, p. 25, PI. iS, fig. 1. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 21, PI. 4, fig. 1, 2; PI- 5. ng- 2, 3. REEVE. Conch. Ie. Vol. VI, Strombus, fig. 31. TRYON. Man. of Conch. Vol. VII, p. 110, PI. 3, fig. 23, 24. Stat. 142. Laiwui, coast of Obi Major. 23 M. Mud. 1 Spec. Stat. 193. Sanana-bay, East coast of Sula Besi. 22 M. Mud. 1 Spec. Stat. 225. South of Lucipara-island. Reef. 3 Spec. Stat. 234. Nalahia-bay, Nusa-Laut-island. 46 M. Stony bottom. 3 Spec. Stat. 250. Kilsuin, West coast of Kur-island. 20 — 45 M. Coral and Lithothamnion. 1 Spec. Stat. 252. West side of Taam-island. Reef. 1 Spec. Stat. 301. Pepela-bay, East coast of Rotti-island. Reef. 1 Spec. Though none of the specimens contains the soft parts, they seem to have lived at the collecting-grounds, as many of them have at least tracés of a rather thin epidermis. 4. Strombus (Euprotomus) papilio Chemnitz. Chemnitz. Conch. Cab. Vol. X, PI. 158, fig. 15 10, 151 1. KlENER. Coq. Viv. Vol. III, Strombus, p. 26, PI. 17, fig. I. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 56, PI. 11, fig. 3, 4. REEVE. Conch. Ie. Vol. VI, Strombus, fig. 29. TRYON. Man. of Conch. Vol. VII, p. 110, PI. 3, fig. 25. Stat. 96. South east side of Pearl-bank, Sulu-archipelago. 15 M. Lithothamnion-bottom. 1 Spec. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 1 Spec. Stat. 282. Between Nusa Besi and N.E. point of Timor. 27—54 M. Sand, coral and Lithotham- nion. 1 Spec. Stat. 299. Buka-bay, South coast of Rotti-island. Up to 36 M. Mud, coral and Lithothamnion. 1 Spec. The specimens from the three last-mentioned localities are very young, the smallest from Stat. 2S2 has only a length of 9'/, Mill. and should nearly be doubtful, but the sculpture, consisting of 3 nearly regular rows of varices, with about 8 curved ribs in the interstices, crossed by regular spirals is characteristic, also small brown spots near the sutures, behind the varices, agree with those of larger specimens, the nucleus is smooth. The specimen from Stat. 96 is quite adult. 39 i.|S ..../,,.,, i r/us Chemnitz. •23, PI. 158, fig- IS06, 1507. Km . III. Strombus, p. 8, PI. 1 1 (cristatm . II. 1 ab. Ed. II. Vol. IV. Strombus, p. 15, PI. 11. fig. 1, 2. Ki ; Vol. VI, Strombus, fig. 25. h. Vol. VII, p. 1 io, PI. 3, fig. 26. . tjil. Pal r-islands. lp to [8 M. Coral and coralsand. 1 Spec. of 51 Mill., perfectly agrres with the upper whorls of my adult rom Amboina. Monodactylusj auris Dianae Linné. LlNNÉ. Syst. Nat. Ed. X, p. 743, X" 429. Rumph. Amb. Rariteitkamer, p. 111. PI. 37, fig. R. KlEN ER. Coq. Viv. Vol. III, Strombus, p. 22, PI. 16, fig. 1. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 25, PI. 6, fig. 1, 2. REEVE. Conch. Ie. Vol. VI, Strombus, fig. 36. TRYON. Man. of Conch. Vol. VII, p. 113, PI. 4, fig. 37. it. ;S. Seba, Savu. Reef. 1 Spec. 89. Pulu Kaniungan Ketjil. Reef. 1 Spec. St.it. 2,4. Nalahia-bay, Nusa-Laut-island. 46 M. Stony bottom. 3 Spec. 7. Strombus ( Monodactylusj guttatus Martini. MARTINI. Conch. Cab. Vol. III, ]). 136, PI. 84, fig. 840. KlENER. Coq. Viv. Vol. III, Strombus, p. 24, PI. 15, fig. I. Ki STER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 26, PI. 6, fig. 3. REEVE. Conch. Ie. Vol. VI, Strombus, fig. 33. Trvon. Man. of Conch. Vol. VII, p. 113 (auris Dianae pars). .stat. 58. Seba, Savu. Reef. 1 Spec. Stat. 172. Island Cis^cr. Reef. 1 Spec. Stat. 234. Nalahia-bay, Nusa-Laut-island. 46 M. Stony bottom. 3 Spec. Tryon lias united this species to S. auris Dianae Lin. In dozens of specimens I found no real doubtful ones. Strombus Gallinulaj vittatus Linné. LlNNÉ. Syst. Nat. Ed. X. p. 745, N" 439. ril. Amb. Rariteitkamer, p. 1 1 o, PI. 36, fig. O. KlENER. Coq. Vi%\ Vol. III. Strombus, p. 40, PI. 23, fig. I, \a, Martini-Chemn. Conch. Cab. Ed. II. Vol. IV. Strombus, p. 44, PI. 7. fig. 5. 6, 8, 9. REEVE. <"iich. Ie. Vol. VI, Strombus, tig. 44. iN. Man. of Conch. Vol. VII, p. 114, PI. 4, tig 41, 42. Stat. 1. 1400 M. from "Zwaantjes-droogte", Madura-strait. 37 M. Grey mud with small broken shells. i Spec. 71. Makassar and surroundings. 27 — 32 M. Mud, sand with mud, coral. 2 Spec. 173. Pulu Jedan, East coast of Aru-islands. 13 M. Sand and shulls. 1 Spec. ast mentioned specimen is an adult but dead shell, corresponding to fig. ia of 40 149 Kiener (1. c), that from Stat. i is young and resembles the upper whorls of Kiener's fig. i ; the specimens from Stat. 7 1 belong perhaps to var. turritus Lam. but are too young to be quite certain about them; by comparing fig. O of Rumph, with the figure of Chemnitz, quoted by Lamarck. for his var. turritus, I think v. Martens was wrong in identifying that fig. O with the var. turritus. In the type the back view of the last whorl occupies at least half the length of the shell, in the variety it is shorter, in Chemnitz's figure it scarcely surpasses a third part of the length. Tryon's fig. 43 may still belong to the type of the species. 9. Stromöus (Gallimila) labiosus Gray. Gray. Wood. Ind. Test. Suppl. PI. 4, fig. 3. Kiener. Coq. Viv. Vol. III, Strombus, p. 54, PI. 22, fig. 2. KüSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 70, PI. 20, fig. 1. Reeve. Conch. Ie. Vol. VI, Strombus, fig. 50. Tryon. Man. of Conch. Vol. VII, p. 116, PI. 5, fig. 51. Stat. ? 1 Spec. Stat. 289. 9°o'.3S., I26°24'.5E. Timor Sea. 112 M. Mud, sand and shells. 1 Spec. Both specimens are empty shells, they are very small, being only 29 and 321/:, Mill. in length. They differ from the descriptions by the columella; which is wrinkled in its whole length instead of being only wrinkled above and below, but as these wrinkles are less conspicuous in the specimen from unknown locality, I suppose this character may have but little value. By these wrinkles the shells are allied to 5. deformis (Gray in Griffith's Animal Kingdom, Vol. XII, pi. 25, fig. 5), but the shape of the apertural wing agrees with that of S. labiosus; the Siboga-specimens are in some degree intermediate between the two species. 10. Strombus (Gallinula) pulchellus Reeve. REEVE. Conch. Ie. Vol. VI, Strombus, fig. 52. Tryon. Man. of Conch. Vol. VII, p. 119, PI. 6, fig. 70 (dentatus var.). Stat. 133. Lirung, Salibabu-island. Reef. 1 Spec. Stat. 279. Ruma-Kuda-bay, Roma-island. Reef. ï Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. The specimen from Stat. 133 agrees very well with Reeve's figure but it is smaller and less intensely coloured, that from Stat. 279 is still smaller and has a basal row of obtuse tubercles, the third from Stat. 313 is young, this latter specimen has some resemblance with the species of the deutatus-group, but I cannot conceive how Tryon considers this species to be a variety of S. dentatus, as it is very conspicuously winged ; the observation of Reeve, that many specimens of 5. labiosus are nearly allied, fully agrees with the specimen from Stat. 133. Unfortunately none of the specimens contained the soft parts. 11. Strombus (Gallimtla) epidromis Linné. LlNNÉ. Syst. Nat. Ed. X, p. 745, N° 437. Rumph. Amb. Rariteitkamer, p. 110, PI. ^6, fig. M. SI BOG A-EXPEDITIE XI.IX1 b. 20 Kien ;. Viv. Vol. 111. Strombus, p. 48, PI- 26, fig. i. Koster. M '' Ed- "• v">- IV< Strombus, p. 45, PI. 7, fig. 7. REEV] I ■ ' VI, Strombus, fig. 54. !,. Vol. VII, p. 116, PI. 5, fi;,'. 55. lu-island. 14 M- Sand. 1 Spec. 12 succinctus Linné. lat. Ed. XII. p. [212, N° 509. Noimini, South coast of Timor. 9 — 36 M. Sand}' mud. 1 Spec. young specimen, long 22 Mill., containing the soft parts, sufficiently agrees with r whorls of my fullgrown specimens to identify it. I have quoted no figures, as such don'l of this young state, as far as I am aware. 13. Strombus (Gallinula) variabilis Swainson. SWAINSON. Zool. Illustr. Ser. I, Vol. I, PI. 10. KlENER. Coq. Viv. Vol. III, Strombus, p. 49, PI. 21, fig. 2. KOSTER. Martini-Chemn. Conch. Cab. Ed. II. Vol. IV, Strombus, p. $7, PI. 4a, fig. 1, 2. Ri KVK. Conch. Ie. Vol. VI, Strombus, fig. 21. TRYON. Man. of Conch. Vol. VII, p. 117, PI. 6, fig. 59. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. This specimen belongs to var. B of KüSTER (1. c), without brown spot on the columella. 14. Stromens (Gallinula) columba Lamarck. LAMARCK. An. s. vert. Ed. II, Vol. IX, p. 702. KlENER. Coq. Viv. Vol. III, Strombus, p. 51, PI. 25, fig. 1. Kl STER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 67, PI. 15, fig. 1, 2, 3. Reeve. Conch. Ie. Vol. VI, Strombus, fig. 26. TRYON. Man. of Conch. Vol. VII, p. 115, PI. 5, fig. 49, 50. Stat. 1. 1400 M. distant from reef -Zwaantjes-droogte". Madura-strait, ^7 M. Grey mud with small broken shells. 1 Spec. Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud, coral. 2 Spec. Stat. 313. East of Dangar Besar, Saleh-bay, Sumbawa. Up to 36 M. Sand, coral and mud. 29 Spec. Twelve of the specimens from Stat. 313 are adult, they agree sufficiently with the hVures of Reeve and TRYON the latter is a copy of Rei i fig.) hut they are considerably smaller, the sm ne having only a length of 29 Mill., the largest of 41 Mill. The brown spot on mella is wantin-, and the columcllar ridges are only conspicuous on one specimen, in s th<:sc ridges are only present on both extremities, tli<' intermediate part of ella being smooth. The margin of the right lip is in a few specimens produced a e penultimate whorl. According to a communication of Mr. E. A. Smith, the similar specimens, which are however larger. 4- i5i 15- Strombus (Canarium) muricatus Martini. Martini. Conch. Cab. Ed. I, Vol. III, p. 85, 98, 165, PI. 78, fig. 803—6. KlENER. Coq. Viv. Vol. III, Strombus, p. 60, PI. 15, fig. 2; PI. 30, fig. 2, 3 (urceus). Küster. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 51, PI. 9, fig. 4 — 6 (urceus). Reeve. Conch. Ie. Vol. VI, Strombus, fig. 24 (urceus). Tryon. Man. of Conch. Vol. VII, p. 118, PI. 6, fig. 65—67 {urceus). Boog Watson. Challenger Reports, Gastropoda, p. 417. Stat. 16. Bay of, Kankamaraan, South coast of Kangeang. Shore. 1 Spec. Stat- 47. Bay of Bima, near South fort. Shore. 5 Spec. Stat. 71. Pulu Barang. Shore. 1 Spec. Stat. 169. Atjatuning, West coast of N. Guinea. Reef. 1 Spec. Stat. 2S5. South coast of Timor. 34 M. Limit between mud and coral. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 2 Spec. Stat. ? 3 Spec. *Java (N. A. M.) 8 Spec. The specimens are very variable in shape, size and colour, also in colour of the columella which is as in the quoted fïgures blackish, more or less deep orange or white. In employing the name muricatus for this species, I have foliowed Boog Watson (l.c.) though it is generally known as 5. urceus. But the reasons of that author for changing the name, seem to be too convincing, to neglect them. Hedley (Proc. Linn. Soc. New South Wales, 1904, p. 188) applies the name 5. ustulatus Schumacher for this species; this name is however of more recent date. 16. Strombus (Canarium ) dentatus Linné. LiNNÉ. Syst. Nat. Ed. X, p. 745. RUMPH. Amb. Rariteitkamer, p. ui, PI. "37, fig. F. KlENER. Coq. Viv. Vol. III, Strombus, p. 62, PI. 31, fig. 1 (plicatus). Küster. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 59, PI. 13, fig. 3, 4 (plicatus). Reeve. Conch. Ie. Vol. VI, Strombus, fig. 17. Tryon. Man. of Conch. Vol. VII, p. 118, PI. 7, fig. 6y — 70. Stat. 193. Sanana-bay, East coast of Sula Besi. 22 M. Mud. 6 Spec. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. Stat. 279. Roma. Reef. 1 Spec. *Amboina (N. A. M.). 1 Spec. var. Rüppcllii Reeve. REEVE. Conch. Ie. Vol. VI, Strombus, fig. 13. Tryon. Man. of Conch. Vol. VII, PI. 6, fig. 62 (erythrinus). Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. Stat. ij. Sailus Ketjil, Paternoster-islands. Up to 18 M. Coral and coralsand. 1 Spec. Stat. 299. Buka-bay, South coast of Rotti-island. Up to t,6 M. Mud, coral and Lithothamnion. 2 Spec. Stat. 315. East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 1 Spec. Stat. 322. South of Tandjong Lajar, Bawean-island. 32 M. Coral. 1 Spec. Some of the specimens agree very will with Reeve's fig. (l.c), those from Stat. 299 and 315 are more allied to the type of the species, but ditïer sufficiently to identify them with the variety. 43 152 i;. Stromens Canari\ Linné. LlNNl • 440. RUMPH. Amb. : , p. in. PI. '-:■ fig- W. Ki 1 - '"• Strombus, p. 63, PI. 32, fig. 1 [floridus), Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 53, PI. 9,fig.8— 10 (floridus). K, mch. Ie. Vol. VI, Strombus, fig. na [floridus). nch. Vol. VII, p. 119, PI. 7, fig. 73— 76 {floridus). Challenger Reports, Gastropoda, p. 417 (m>t< . Nangamessi, Sumba. Up to 36 M. Coralsand. 1 Spec. ba, Savu. Reef. 2 Spec. . 1'ulu Sebangkatan, Borneo-bank. Reef. 1 Spec. •. 174. Waru-bay, North coast of Ceram. iS M. Mud. 2 Spec. Sanana-bay, I-Last coast of Sula Besi. Reef. 1 Spec. St.u. ; . Kilsuin, West coast of Kur-island. 20 — 45 M. Coral and Lithothamnion. 1 Spec. St.it. 279. Roma. Reef. 1 Spec. This is the species better known as 5". floridus Lam., which after Haxlkv (cfr. Boog ought to bear the Linnean name of S. urceus. Linnë" himself quotes fig. T of RtMi'ii. which is certainly not Lamarck's floridus, but probably S. dentatus Lin. if not S. nncri- catus Martini; as the fig. G of plate 32 of GuALTIERl (Index testarum conchyliorum), likewise quoted by Linné, is however quite another species of Strombus, the original specimen is the only safe source, and so this shell must bear the name urceus, hovv inconvenient it may be to alter long familiar names. .-> 18. Strombus (CanariumJ gibberulus Linné. Linné. Syst. Nat. Ed. X, p. 744. X" 433. RUMPH. Amb. Rariteitkamer, p. III, PI. 17, f>g- V. KlENER. Coq. Viv. Vol. III, Strombus, p. 57, PI. 28, fig. 1. Kt STER. M-irtini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 48, PI. 8, fig. 3—9, 11. Reeve. Conch. Ie. Vol. VI, Strombus, fig. 15. TRYON. Man. of Conch. Vol. VII, p. 121, PI. 8, fig. 85. Stat. 37. Sailus Ketjil, Paternoster-islands. 27 M. Coral and coralsand. 1 Spec. Stat. 60. Haingsisi, Samau-island. Reef. 1 Spec. Stat. 225. South of Lucipara-island. Reef. 2 Spec. Stat. 279. Roma. Reef. 1 Spec. Java (N. A. M.). 2 Spec. Very variable in sizc, shape and colour of the outer and inner surface of the shell. 19. Strombus ( Ccuiariiuu bulbulus Sowerby. . l'roc. Zool. Soc. Lond. 1842, p. 144. R] nch. Ie. Vol. VI, Strombus, fig. 8. TRYON. Man. ..f lunch. Vol. VII, p. 121, PI. 8, fig. 86. t. 40. Pulu Kawassang, Paternoster-islands. 12 M. Coralreef. 1 Spec. 1 the onh specimen is still rather young and approaches by its shape S. terebellatus brown and agrees with that of the rare S. bulbulus, also with the figures of 4-1 153 Duclos (Illustrations Conch. Strombus, PI. 7, fig. 7, 8; PI. 15, fig. 9, 10) and with subfossil specimens from Celebes, which are rather variable in shape. The characteristic wrinkles of the aperture are still wanting. 20. Stromens (Canarium) samar Chemnitz. Chemnitz. Conch. Cab. Vol. X, p. 221, PI. 157, fig. 1501, 02. Rumph. Amb. Rariteitkamer, p. 112, PI. 37, fig. Y. KlENER. Coq. Viv. Vol. III, Strombus, p. 64, PI. 26, fig. 2 (tridentatus). KüSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombus, p. 54, PI. 9, fig. 12—15 [tridentatus). REEVE. Conch. Ie. Vol. VI, Strombus, fig. 53 (samarensis). Tryon. Man. of Conch. Vol. VII, p. 121, PI. 8, fig. 88. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 1 Spec. Stat. 299. Buka-Bay, South coast of Rotti-island. 36 M. Mud coral and Lithothamnion. 1 Spec. 2 1 . Strombus (Conomurex) luhuanus Linné. LlNNÉ. Syst. Nat. Ed. X, p. 744, N° 432. Rumph. Amb. Rariteitkamer, p. m, PI. t>7, Fig. S. Kiener. Coq. Viv. Vol. III, Strombus, p. 39, PI. 27, fig. 1. KÜSTER. Martini-Chemn. Conch. Cab. Ed. II, Strombus, p. 46, PI. 8, fig. 1, 2, 10. Reeve. Conch. Ie. Vol. VII, Strombus, fig. 19. Tryon. Man. of Conch. Vol. VII, p. 122, PI. 8, fig. 91, 92. Stat. ^j. Sailus Ketjil, Paternoster-island. Up to 18 M. Coral and coralsand. 1 Spec. Stat. 78. Lumu-Lumu-shoal, Borneo-bank. Shore. 6 Spec. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, sand and coral. 2 Spec. Stat. 225. South of Lucipara-island. Reef. 1 Spec. Stat. 240. Banda. 9 — 45 M. Black sand and coral. 2 Spec. Stat. 250. Kilsuin, West coast of Kur-island. 20 — 45 M. Coral and Lithothamnion. 1 Spec. Stat. 299. Buka-Bay, South coast of Rotti-island. Up to 36 M. Mud, coral and Lithothamnion. 1 Spec. Stat. 313. Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 2 Spec. *Amboina (N. A. M.). 1 Spec. Pterocera Lamarck. 1. Pterocera lambis Linné. Linné. Syst. Nat. Ed. X, p. 743, N° 425. Rumph. Amb. Rariteitkamer, p. 110, PI. 35, fig. E, F; PI. 36, fig. G. KlENER. Coq. Viv. Vol. III, Pterocera, p. 7, PI. 3; PI. 9, fig. 2; PI. 4, fig. 1, n. Küster. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombea, p. 82, PI. 10, fig. 7; PI. 16, fig. 3, 4; PI- 17. %• 3; PI- i8> fig- 5, 6. Reeve. Conch. Ie. Vol. VI, Pterocera, fig. 8. Tryon. Man. of Conch. Vol. VII, p. 124, PI. 8, fig. 1—3. Stat. 7. Near reef of Batjulmati (Java). 15 M. Coral and stones. 1 Spec. Stat. 16. Bay of Kankamaraan, South coast of Kangeang. Shore. 1 Spec. Stat. 78. Lumu-Lumu-shoal, Borneo-bank. Shore. 2 Spec. Stat. 142. Laiwui, North coast of Obi Major. 23 M. Mud. 3 Spec. 45 '54 St.it Malahia-bay, Nusa-Laut-island. Keet", i Spec. ,\ c^t sidc .'t raam-island. Reef. i Spec. Stal Ruma-Kuda-bay, Roma-island. Reef. i Spec. Amboina X. A. M. . i Sp This is the most common species of th<- genus. 2. Ptcrocera , i Linné. Linni . Syst. Nat. Ed. X. p. 742, X" 423. ii. Amb. Rariteitkamer, p. 109, Tl. 35, fig. A — ü. Kil oq. Viv. Vol. III, Pterocera, p. 5, PI. 5, PI. iu, fig. 2. Rl onch. Ie. Vol. VI, Pterocera, fig. 2. ON. Man. of ('onch. Vol. VII, p. 126. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 2 Spec. Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 1 Spec. Rostellaria Lamarck. 1. Rostellaria Powisii Petit. PI. XVI, fig. 2. Peut. Magazin de Zoölogie, 1842, PI. 53. KIEN ER. Coq. Viv. Vol. III, Rostellaria, p. 6, PI. 2, fig. 2. K STER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombea, p. 97, PI. 25, fig. 2, 3. REEVE. Conch. Ie. Vol. VI, Rostellaria, fig. 4. TRYON. Man. of Conch. Vol. VII, p. 128, PI. 11, fig. 22. Stat. 306. 8 -7 S., 1 22~J 54 .5 E. Savu Sea. 247 M. Sandy mud. 7 Spec. Stat. 312. Saleh-bay, Xorth coast of Sumbawa. 274 M. Fine, sandy mud. 2 Spec. One of the specimens from Stat. 312 is a very line large shell, agreeing with Ri 1 vi 's figure by the prominence of the third liration on the last whorl, which is also broader; the seventh liration is also more conspicuous, though less than the third mie; this specimen contains the soft parts, the other specimen shows the same peculiarities, but is a dead shell and slightly broken. The specimens from Stat. 306 are small and young. var. abyssicola n. var. PI. XI. fig. 5. Stat. 139. o: 11 S., 127 25 E. Molucca-Passage. 397 M. Mud, stones and coral. 4 Spec. Shell small, whitish, thinner than tin- type, the upper whorls nearly smooth, with only one conspicuous groove, bordering a narrow spiral cord, just below the suture; this is continuous untill the aperture, the upper part of last whorl, below that groove, smooth on the ventral side, angular <>n the place wliere in the type runs the third of the lirae, on the back with indistinct spirals. heginning with a row of punctures, more conspicuous behind the apertural margin, base of last whorl with conspicuous spiral cords, separated by punctured grooves; denticles and other particularities of the aperture, as in the type. Length of largest specimen 39 MUI. of smallest 33 Mill.. it may have been in both little more. since the canal seems to be slightly broken. 46 155 This fine shell has much puzzled me; after comparing it carefully with typical specimens, I can see nothing in it but a dwarfed form with obsolete sculpture, probably owing its peculiar character to the considerably greater depth. A young specimen is scarcely different from young ones from Stat. 306. Unfortunately the shells contained nothing but some mud. The radula of a small specimen from Stat. 306 agrees in many respects with those of other Strombidae, it is short, with about 35 rows of teeth, its colour is yellowish. The rhachidian tooth (R) has a body which is broad in front and suddenly narrower about halfway; its cusp has 1 1 denticles, of which the central one is the largest; the lateral tooth (1) has a transversely much elongated body and about 9 denticles on its reflected margin. The uncini (U) are long, slender, much curved, with a few small denticles on the sides. It was a male specimen with a long slender penis, ending in a thickened, spear-shaped point. Rimella Agassiz. 1 . Rimella cancellata Lamarck. Lamarck. An. s. vert. Ed. II, Vol. IX, [Strombus) p. 710. KlENER. Coq. Viv. Vol. III, Rostellaria, p. 9, PI. 3, fig. 3. KüSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombea, p. 7$, PI. 20, fig. 5. REEVE. Conch. Ie. Vol. VI, Rostellaria, fig. 10. Tryon. Man. of Conch. Vol. VII, p. 129, PI. 10, fig. 18, 20. Stat. 58. Seba, Savu. Up to 27 M. 2 Spec. Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud, coral. 5 Spec. Stat. 231. Amboina. 54 M. Coralsand. 1 Spec. Stat. ? 2 Spec. forma minor. Stat. 133. Lirung, Salibabu-island. Up to 36 M. Mud and hard sand. 9 Spec. Shell only from 19 to nearly 23 Mill. in length, more conspicuously banded. I have maintained Rimella as a genus, though it has been considered by Fischer and Tryon as a subgenus of Rostellaria, but the operculum is serrate as in Strombus, instead of being smooth-margined as in Rostellaria. The forma minor distinguishes itself by its smallness and the vivid painting, the specimen from Amboina which has a length of 26 Mill. and which is also more gayly coloured may be considered as a link between the type and forma minor. 2. Rimella crispata Sowerby. SOWERBY. Thes. Conch. Part I, p. 26, PI. 8, fig 62, 63. KlENER. Coq. Viv. Vol. III, Rostellaria, p. 10, PI. 4, fig. 2. KüSTER. Martini-Chemn. Conch. Cab. Ed. II, Strombea, p. j6, PI. 25, fig. 4, 5. REEVE. Conch. Ie. Vol. VI, Rostellaria, fig. 8. Tryon. Man. of Conch. Vol. VII, p. 129, PI. 10, fig. 19. Stat. 174. YVaru-bay, North coast of Ceram. Reef. 1 Spec. Stat. 260. North point of Nuhu Jaan, Kei-islands. 90 M. Sand, coral and shells. 1 Spec. Stat. 261. Elat, West coast of Great-Kei-island. Reef. 9 Spec. 47 «56 Varying much in si probably adult specimens trom Stat. 261, with well- developed outer lip and a osite side of the body-whorl, the largest specimen nas .1 length of 22 Mill. the smallesl of only 10 Mill.; the full-grown intermediate specimens have the length of 1 1 < and :o', Mill. \. Adams. PI. X\', fig. 5: PI. XVI. fig. 1. II. Zool. Soc. Lond. 1863, p. 428. ni ii. Vol. VII, p. [19, 1 ,: '. .1 (Java). 9 M. Coarse sand. 10 Spec. ; 3. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. 47. Ba) <>! Bima, ncar South fort. 55 M. Muil with patches ut" fine coralsand. 1 Spec. Bay <>|" Badjo, West coast of Flores. Up to 40 M. Mud, sand and shells. 1 Spec. Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud, coral. 3 Spec. .Mat. 213. Saleyer. Up to 36 M. Coralreefs, mud and mud with sand. 1 Spec. Stat. ? 10 Spec. Ili is species is also very variable in size, the smallest specimen from Stat. 4 being only 14 Mill. in length, the largvst from the same locality 23 Mill., this latter being only surpassed bv a specimen from Stat. : measuring 25 Mill. The opercuium is serrate, as in A'. cancellata\ ,i> far as 1 know this species has not been figured before. The radula which, as far as I am aware, was not yet known is very small, its length is about k, its breadth '/s 0I" a Mill., with about 35 transverse rows. The rhachidian tooth (R) is broadly rounded in front, contracted behind, with a cusp bearing one moderately large central denticle and about 6 smaller ones on each side, the laterals(i) are strongly transversely elongate with a simple reflected margin, terminating in a sharp point towards the centre of the radula, the uncini I are long and slender, strongly curved, with a few indistinct denticles. The general appearance of the radula is much the same as that of the preceding genus, as far as may be judged from one radula of each, the chief difference being the smooth margin of the laterals, which are provided with many denticles in Rostellaria. Terebellum Klein. 1. Terebellum terebellum Linné. LlNNÉ. Syst. Nat. Ed. X. p. 718, V 2S4. Rl mimi. Amb. Rariteitkamer, p. 101. PI. 30, fig. S. KlENER. Coq. Viv. Vol. I. Terebellum, p. 2. PI. 1, lig. 1 [subulatum). Reeve. Conch. Ie. Vol. XVI, Terebellum, lig. 1 [punctatum). ,"N. Man. of Conch. Vol. VII, p. 131, PI. 11. fig. 27 — 30 {subulatum). Mat. 33. Bay of Pidjot, Lombok. 12 M. Mud, coral and coralsand. 1 Spec. Stat. 37. Sailus Ketjil, Paternoster-islands. Reef. 1 Spec. Stat. 47. Bay "f Bima, neai South fort. 55 M. Mud with patches of fine coralsand. 4 Spec. Kambaragi-bay, Tanah-Djampeah. 32 M. Coral, coralsand. 1 Spec. Stat. 71. M 1 and surroundings. 2-; —32 M. Mud, sand with mud, coral. 2 Spec. Stat. 24M. Banda. 9 — 45 M. Black sand, coral. 1 Spec. ;8. 'I'ual. Kei-islands. 22 M. Lithothamnion, sand and coral. 1 Spec. I, Buka-bay, Rotti-island. Up to 36 M. Mud, coral and Lithothamnion. 2 Spec. I ast "f Dangar He-ar, Saleh-bay. Lp t" 56 M. Sand coral and mud. 7 Spec. 48 i57 Very variable in colour-pattern, the majority of the specimens agrees with Kiener's fig. i and \b or is intermediate, that from Stat. 64, with his fig. 1 c. Prof. Bergh has (Zool. Jahrb. Bd 8, Abth. für Anat. p. 372, PI. 22, fig. 11 — 14) described and figured the radula of this species. Fam. Cerithiidae. Cerithium Adanson. 1 . Cerithium nodulosuyt Bruguière. 'S Bruguière. Encycl. Meth. PI. 442, fig. 3. RUMPH. Arab. Rariteitkamer, p. 101, PI. 30, fig. O. KlENER. Coq. Viv. Vol. IV, Cerithium, p. 4, PI. 2, fig. 1. REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 3. Tryon. Man. of Conch. Vol. IX, p. 122, PI. 19, fig. 13, 14; PI. 20, fig. 15. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 76, PI. 15, fig. 1. Stat. 78. Lumu-Lumu-shoal, Borneo-bank. Shore. 1 Spec. Stat. 89. Pulu Kaniungan Ketjil. Reef. 1 Spec. Stat. 225. South of Lucipara-island. Reef. 1 Spec. Stat. 313. Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. Three of the specimens of this common species are young, dead shells. That from Stat. 3 1 3 is a fine specimen, probably containing the soft parts, which are too much withdrawn to be seen. 2. Cerithium columna Sowerby. SOWERBY. Genera of shells. Vol. II, PI. 204, fig. 7. KlENER. Coq. Viv. Vol. IV, Cerithium, p. 7, PI. 3, fig. 1 [eclünatum). REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 2. Tryon. Man. of Conch. Vol. IX, p. 123, PI. 20, fig. 17, 18. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 85, PI. 16, fig. 7, 8. Stat. 78. Lumu-Lumu-shoal, Borneo-bank. Shore. 1 Spec. Stat. 81. Pulu Sebangkatan, Borneo-bank. Reef. 1 Spec. Stat. 99. North-Ubian. 16 — 23 M. Lithothamnion-bottom. 1 Spec. Stat. 225. South of Lucipara-island. Reef. 1 Spec. Stat. 240. Banda. Reef. 1 Spec. Stat. 260. North point of Nuhu Jaan, Kei-islands. 90 M. Sand, coral and shells. 1 Spec. Stat. 279. Rumah-Kuda-bay, Roma-island. Reef. 1 Spec. The specimen from Stat. 78 is very small, reaching only a length of 17 Mill. 3. Cerithium citriuum Sowerby. Sowerby. Thes. Conch. Vol. II, p. 855, PI. 179, fig. 66. KlENER. Coq. Viv. Vol. IV, Cerithium, p. 10, PI. 4, fig. 1 {columna). REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 1. Tryon. Man. of Conch. Vol. IX, p. 123, PI. 20, fig. 21. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 110, PI. 22, fig. 2, 3. 49 SIKOGA-EXPEDITIE XLIX1^. 21 r58 St.it. 40- l'ulu Kawassang, Paternoster-islands. Coralreef. 2 Spec. St.it. 99. North-Ubian. 16 23 M. Lithothamnion-bottom. 1 Spi St.it. 12;. North-bay, 11i.uu-is1.uh1. 36—27 M. Stom- and Lithothamnion-bottom. 1 Spcc. St.it. 144. North of Salomakiëe-island. 45 M. Coralbottom and Lithothamnion. 1 Spcc. Stal Stal lit. 51 M. Fine, green mud. 1 Spcc. Stat. 31 ;. East ofSailus Besar, Paternoster-islands. Up to 3(1 M. ( loral and Lithothamnion. 1 Spec. Varying considerably in size; <>t the two specimens from Stat. 40, the length of the ■4 one is 35, that of the smallest only 24 Mi]]., though both have the lij) expanded and thickened and may be considered to be adult. 4. Cerithium echinatum Lamarck. LAMARCK. Aii. s. vcrt. Ed. II, Vol. IX, p. 291. REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 10. TRYON. Man. of Conch. Vol. IX, p. 123, PI. 20, fig. 25. KOBl 11. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 101, PI. 20, fig. 5, 6. Stat. 22;. South point of South Lucipara-island. Reef. 1 Spec. The only specimen, which is broken at the aperture, belongs to the short, thick form. represented by the quoted figures. 5. Cerithium novaehollandiae Adams. A. ADAMS. Thes. Conch. Vol. II, ]). 864, PI. 178, fig. 54. Rl EVE. Conch. Ie. Vol. XV, Cerithium, fig. 30. TRYON. Man. of Conch. Vol. IX, p. 124, PI. 21, fig. 34. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 123, PI. 23, fig. 8. Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 2 Spec. Of the two specimens, one is characteristic, being white with a broad brown band at the base of each whorl, it seems to ditfer from the figures by one or two of the spirals being slightly prominent, in the other specimen I see a few brown spots on the base of the whorls, but no distinct band, and two spirals so much developed as to form one row of small tubercles on the upper whorls, about halfway, and a second row, nearly concealed by the suture. Both specimens an- young. If adult they might be described as a variety, but now I prefer to make only mention of these characters, as constituting individual aberrations of the type. 6. Cerithium coralium Kiener. Kiener. Coq. Viv. Vol. IV, Cerithium, p. 32, PI. 8, fig. 3. R.EEVE. Conch. Ie. Vol. XV, Cerithium, fig. 29 [corallinum). TRYON. Man. of Conch. Vol. IX, p. 125, PI. 21, lig. 36 (corallinum). Kobelt. Martini-Chemn. Conch. Cab. Ed. II. Vol. I, Cerithium, p. 218, PI. 39, fig. 1, 2. Stat. 71. Makassar. L7p t.. 32 M. Mud, sand with mud, coral. 5 Spcc. Stat. 86. Dongala, Palos-bay. Reef. 1 Spcc. name of this species lias been written in very different manners; accordiiiL; ii> 1 M, mud, hut I think not described 1>\ Dufresne as C. coralium^ on Kiener's 5° 159 plate the name is coraillium, v. Martens (Journ. Lin. Soc. Vol. 21, p. 190) has recordecl it from the Mergui-archipelago as C. corallium Defrance, Reeve and Tryon write Corallinum. I have applied the original name but with Kiener's name as the author. The species varies considerably in size. 7. Cerithium ros tra turn Sowerby. Süwerby. Thes. conch. Vol. II, p. 861, PI. 180, fig. 104. Reeve. Conch. Ie. Vol. XV, Cerithium, fig. 95. Tryon. Man. of Conch. Vol. IX, p. 130, PI. 23, fig. 90, 91. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 211, PI. tf , fig. 8, 9. Stat. 37. Sailus Ketjil, Paternoster-islands. Up to 18 M. Coral and coralsand. 5 Spec. Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 1 Spec. Stat. 206. Buton-strait. 5 1 M. Fine, green mud. 2 Spec. The quoted figures give but a faint idea of the delicacy and beauty of this species, which is of a transparant white, with very fine brown dots and streaks, the canal stained with blackish brown. 8. Cerithium baltcatum Philippi. Philippi. Zeitschr. f. Mal. 1848, p. 22. Abbildungen neuer Conch. III, p. 16, Cerithium, PI. I, fig. 10. REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 72*7. Tryon. Man. of Conch. Vol. IX, p. 131, PI. 23, fig. 2, 3. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 189, PI. 34, fig. 16, 17. Stat. 299. Buka-bay, South coast of Rotti-island. 36 M. Mud, coral and Lithothamnion. 3 Spec. The only adult specimen agrees very well with Reeve's fig. 72^. 9. Cerithium serratum Wood. Wood. Index testac. PI. 28, fig. 158. Reeve. Conch. Ie. Vol. XV, Cerithium, fig. 75 {rubus). Tryon. Man. of Conch. Vol. IX, p. 131, PI. 23, fig. 4—9 {rubus). KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 213, PI. 38, fig. 1. Stat. 81. Pulu Sebangkatan, Borneo-bank. 34 M. Coral-bottom and Lithothamnion. 1 Spec. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 2 Spec. Stat. 299. Buka-bay, South coast of Rotti-island. 36 M. Mud, coral and Lithothamnion. 1 Spec. Stat. 313. Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. About 120 Spec. Stat. ? 4 Spec. Very variable in colour, yellowish, brown, whitish, often more or less banded and variegated with darker colours, however shape, size and sculpture agree with such specimens as may be considered to belong to the type. Cerithium rubus of Martyn, seems to be quite another species; according to Pilsbry (Proc. Acad. Nat. Sc. Philadelphia. 1901, p. 392) it should be the same as C. echinatum of Lamarck; if this be right; the species recorded above sub N" 4, ought to bear that name. 51 i6o var. xordidula Gould. G LD. < Itia l 'onch. p. RE] ch. Ie. Vol. XV, Ccrithium, fig. 87. I. c. |'. 132, PI. 23, fig. 1 5. . Martini-Chemn. Conch. Cab. Ed. II. Vol. I. Cerithium, p. 215, PI. $8, fig. 8. ■;. South coast of Timor. 34 M, On the limit between mud and coral. i Spec. Only differing from the type by its sharper sculpture and slightly broader shape. •ithium granosum Kiener. KlENER. Coq. Viv. Vol. I\'. Cerithium, p. 57, PI. 4. fig. 3. REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 73. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 221, PI. 39, fig. 12, 13. Stat. 19. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- sancl. 1 Spec. Stat. s'>. Dongala, Palos-bay, Celebes. Reef. 1 Spec. Stat. 204. Between islands Wowoni and Buton. 75 — 94 M. Sand with dead shells. 1 Spec. Tryon considers this species to be a synonym of the preceding one-, it differs sufficiently in shape and sculpture, to be separated as a good species. 11. Cerithium tenellum Sowerby. Sowerby. Thes. Conch. Vol. II, p. 857, PI. 188, fig. 88 — 90. REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 71. TRYON. Man. of Conch. Vol. IX, p. 132, PI. 23, fig. 10. 11. KOBELT. Martini-Chemn. Conch. Cab. Ed. II. Vol. I, p. 213, PI. 38, fig. 2, 3. Stat. 43. 1'ulu Sarassa, Postillon-islands. Up to 36 M. Coral. 2 Spec. Stat. jS. Lumu-Lumu-shoal, Borneo-bank. Shore. 10 Spec. _ The specimens from Stat. 78, one of which is of a rosy hue, are smaller than Reeve's figure, they have only a length of about 15 Mill. instead of 22, one of the specimens from Stat. 43 on the contrary, reaches 22 Mill. 1 2. Cerithium morum Lamarck. Lamarck. Aii. s. vert. Ed. II, Vol. IX, p. 302. KlENER. Coq. Viv. Vol. IV, Cerithium, p. 52, PI. 15, fig. 1. REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 42. TRYON. Man. of Conch. Vol. IX, p. 133, PI. 24, fig. 32, 33. KOBELT. Martini-Chemn. Conch. Cab. Ed. II. Vol. I, Cerithium, p. 80, PI. 15, i'v^. 6,7. Stat. 19. Bay <>f Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- sand. 1 Spec. Stat. 37. Sailus Ketjil, Paternoster-islands. 27 M. Coral and coralsand. 1 Spec. it. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 2 Spec. Bay of Bima, near South fort. Shore. 1 Spec. . 174. Waru-bay, North coast of Ceram. keef. 1 Spec. ui Enkhuizen near Batavia. (N.A.M.). 1 Spec. 52 iói var. monilifera Kiener. Stat. 19. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- sand. 1 Spec. This specimen agrees with the original figure of Kiener, less with those of Reeve, Tryon and Kobelt. 13. Cerithium tuberculatum Linné. LiNNÉ. Syst. Nat. Ed. XII, p. 1213, N° 514. Smith. Zool. Coll. of H. M. S. "Alert", p. 63—65. Tryon. Man. of Conch. Vol. IX, p. 133, PI. 24, fïg. 25 — 27. Stat. 7. Near reef of Batjulmati (Java). 15 M. Coral and stones. 1 Spec. Stat. 19. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- sand. 2 Spec. Stat. 34. Labuan Pandan, Lombok. Coralreef. 1 Spec. Stat. 129. Kavvio- and Kamboling-islands, Karkaralong-group. Reef. 1 Spec. Stat. 131. Beo, Karakelang-islands. Reef. 2 Spec. Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 1 Spec. Stat. 225. South point of South Lucipara-island. Reef. 2 Spec. Stat. 277. Dammer-island. Reef. 5 Spec. Stat. 279. Ruma-Kuda-bay, Roma-island. Reef. 2 Spec. Stat. 296. Noimini, South coast of Timor. Reef. 1 Spec. var. varicgatum Ouoy and Gaimard. Quoy & Gaimard. Voy. de 1'Astrolabe. Vol. III, p. 129, PI. 55, fig. 17. Reeve. Conch. Ie. Vol. XV, fig. 41. Stat. 86. Dongala, Palos-bay, Celebes. Reef. 5 Spec. Stat. 142. Laivvui, North coast of Obi Major. Reef. 1 Spec. As to the identification of C. titberatlattun and its variety variegatum, I have foliowed the views of E. A. Smith (1. c.) the specimens agree with such, formerly named by that author, in my private collection. 14. Cerithiiim maculosum Mighels. MlGHELS. Proc. Bost. Soc. Nat. Hist. Vol. II, p. 22. Reeve. Conch. Ie. Vol. XV, Cerithiiim, fig. 97. Tryon. Man. of Conch. Vol. IX, p. 137, PI. 26, fig. 75. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 199, PI. 35, fig. 18, 19. Stat. 225. South point of South Lucipara-island. Reef. 1 Spec. The only specimen is not yet adult. 15. Cerithium clavis (Sowerby) Reeve. (Sowerby) Reeve. Conch. Ie. Vol. XV, Cerithium, fig. 94. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 227, PI. 40, fig. 5. Stat. 95. 5°43'.5 N., ii9°4o'E. Sulu Sea. 522 M. Stony bottom. 39 Spec. Specimens agreeing sufficiently with the fïgure and description of Reeve, to be identified 53 1 62 with tliis species, described without locality in the quoted works. The brown band is onlj faintly visible in one specimen. Unfortunately the specimens are dead, partly worn shells, so it cannot be made out it" they have really lived at the great depth of 522 M. [6. Cerithium aduncum Gould. Boston Soc. Nat. Hist Vol, III, [849, p. 119. Rl nch. Ie. Vol. XV, Cerithium, tig. 56 [dorsuosum) fig. 57 (aduncum). TRYON. Man. of Conch. Vol. IX, p. [39, PI. 26, fig. 96, 97. KOBEl 1. Martini-Chemn. Conch. Cab. Ed. II, Vol. I. Cerithium, p. 103, PI. 20, fig. 9, io. 50. Bay of Badjo, West coast of Flores. Up to 40 M. Mud, sand and shells. 11 Spec. According to Reeve, the only difference between C. aduncum and dorsuosum should be, that in the former the outer lip is ridged, bein^ smooth in dorsuosum. Now, as the very old specimens from the above locality have the outer lip smooth, the younger ones have it ridged, with everv grade between them, I think they ought to be united, as for the lirst time has been done by Tryon, afterwards by Kobelt on Tryon's authority; the "Siboga'-specimens are less humped, than the figure of aduncum, the colour also agrees with Reeve's dorsuosum, but in size and in sliape of upper whorls, they come nearer to his aduncum. 17. Cerithium zebrum Kiener. KlEN ER. Coq. Viv. Vol. IV, Cerithium, p. 71, PI. 25, fig. 4. REEVE. Conch. Ie. Vol. XV. Cerithium, fig. 136? YON. Man. of Conch. Vol. IX, p. 138, PI. 26, fig. 78—82. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 220, PI. 39, fig. 7 — 10. Stat. 215. North point of Kabia-island. Reef. 1 Spec. Reeve's locality "Gallapagos-Islands" makes it doubtfnl, if he had in view the true C. zebrum. iS. Cerithium pauxillum A. Adams. A. ADAMS. Proc. Zool. Soc. Lond. 1854, p. 86. REEVE. Conch. Ie. Vul. XV, Cerithium, fig. 144. TRYON. Man. of Conch. Vol. IX, p. 141, PI. 34, fig. 95. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium. p. 228, PI. 40, fig. 8. Stat. 144. Laiwui, North coast of Obi Major. 23 M. Coral-bottom and Lithothamnion. 3 Spec. Stat. 2S5. South coast of Timor. 34 M. Limit between mud and coral. 19 Spec. Though the specimens have a fourth row of nodules on each whorl, in contradiction to the original description of Adams, who says "triseriatim granosis", they belong no doubt to the species under consideration, as they have been compared with the types in the British Museum by Mr. E. A. Smith; the shell has a tendency t" be banded with fulvous above the suture, the fourth series of nodules is smaller and so may have been overlooked, moreover I see a • rmediate lirae especially on the last whorl. There is a single varix on the left side of the bodywhorl and another bordering the aperture externally; the whole shell is covered with l ae, only visible under a strong lens. 54 i63 19. Cerithium (Colina) Koperbergi Schepman. SCHEPMAN. Posttertiare AIoll. von Celebes. Samml. Geol. Mus. Leiden, Ser. I, Bd 8, p. 188, PI. 12, fig. i. Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 3 Spec. I cannot separate this form from the subfossil ones from Celebes. The sculpture of these latter seems to be sharper, but this may depend on its fossil state or on local influence. The recent specimens are dark yellowish-brown, mottled with white, mixed with irregular patches of crimson on the last whorl ; the aperture especially the columella and canal is stained by the same colour. 20. Cerithium (Liocerithium) piperihrm Sowerby. SOWERBY. Thes. Conch. Vol. II, p. 867, PI. 181, fig. 136, 137. REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 81. TRVON. Man. of Conch. Vol. IX, p. 144, PI. 27, fig. 31, 32. Kobelt. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 117, PI. 22, fig. 12. Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral 1 Spec. Stat. 78. Lumu-Lumu-shoal, Borneo-bank. Shore. 9 Spec. Stat. 240. Banda. Reef. 1 Spec. Stat. 213. South-island, near Saleyer. Reef. 1 Spec. Stat. 273. Pulu Jedan, East coast of Aru-islands. 13 M. Sand and shells. 1 Spec. Stat. 301. Pepela-bay, East coast of Rotti-island. Reef. 1 Spec. I have omitted the quotation of Kiexer's work, as his figure represents a shell from Senegal described as C. punctatum by Bruguière. Reeve and Tryon think they are synonyms, Kobelt that they are different. 2 1 . Cerithium (Liocerithiu»i) lactetim Kiener. KlEXER. Coq. Viv. Vol. IV, Cerithium, p. 58, PI. 7, fig. 3. REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 85. Tryon Man. of Conch. Vol. IX, p. 143, PI. 27, fig. 29, 30, 33. Kobelt. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 130, PI. 24, fig. 12, 13. Stat. 225. South point of Lucipara-island. Reef. 2 Spec. Stat. 279. Roma. Reef. 1 Spec. 22. Cerithium Tyciemani n. sp. PI. XI, fig. 6. Stat. 313. Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 2 Spec. Shell elongate, yellowish-brown, with many convex whorls. Nucleus wanting, remaining whorls 12, the uppermost closed by a calcareous septum, upper ones regularly convex, lower ones with a broad excavation below the suture, which is not deep, slightly compressed at the sides. Of the two specimens (which are unfortunately not adult) the largest has 4 varices on the lower whorls. Sculpture consisting of 5 spiral cords, of which one borders the base of each whorl, the uppermost bordering the subsutural excavation. The whole shell, as well the spiral 55 1 6 \ cords as tin- interstices and the excavation, is covered with regular spiral rows of smal! granules, giving t<> man) parts .1 cancellated appearance, one could as well say thal in the upper whorls, the shell is cancellated by granular spirals and concentric riblike striae; moreover the shell lias on the lower whorl iall) of the smaller specimen, indistinct ribs; last whorl carinated by the strong peripheral cord, it^ basal pan with two stronger and a great number of finer spiral cords or lira ed bj very fine growthstriae. Aperture subquadrangular, its characters cannot t. by the juvénile state; the right margin, which will most probably lx- varicose in the adult shell, is still thin, columellar margin curved, terminating in a sin ui canal, directed towards the left and slightly upturned. This new species is very peculiar by its shape and sculpture. I know no species to which it may be allied and think, if it were adult, it would prove to constitute a new section. Clava Martyn. 1. Chifd (Pseudovertagus) aluco Linné. LlNNÉ. Syst. Nat. Ed. X. p. 755, X" 497. RUMPH. Amb. Rariteitkamer, p. 100, PI. 30, fig. N. KlENER. Coq. Viv. Vol. 1\', Cerithium, p. 17, PI. 6, fig. i. REEVE. Conch. Ie. Vol. XV, Vertagus, fig. 3. TRYON. Man. of Conch. Vol. IX, p. 145, PI. 27, fig. 38. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Cerithium, p. 16, Pi. 3, fig. 4 — 6. Stat. 34. Labuan Pandan, Lombok. Coralreef. 1 Spec. Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 1 Spec. Stat. 250. Kilsuin, West coast of Kur-island. 20 — 45 M. Coral and Lithothamnion. 4 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. 'Java. (X. A. ML). 1 Spec. 2. Clava sinensis Gmelin. Gmelin. Syst. Nat. Ed. XIII. p. 3542. KlENER. Coq. Viv. Vol. IV, Cerithium, p. 15, PI. 5, fig. 1 (obeliscus). R] EVE. Conch Ie. Vol. XV, Vertagus, fig. 7 (obeliscus). TRYON. Man. of Conch. Vol. IX, p. 14G, PI. 27, fig. 39 (obeliscus). KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 20, PI. 4, fig. 2— S. Stat. ;^. Bay of Nangamessi, Sumba. Up to 36 M. Coralsand. 1 Spec. Mat. Si. Pulu Sebangkatan, Borneo-bank. Reef. 1 Spec. Stat. 174. Waru-bay, North coast of Ceram. Reef. 1 Spec. Stat. 225. South point of South Lucipara-island. Reef. 4 Spec. The specimens from the last named locality, nearly reach the recorded maximum of length of 2,5 inch' 3. C/ava ariiculata Adams X Reeve. Adams & Reeve. Voy. Samarang, p. 43, PI. 10, lig. 14. REEVE. Conch. Ie. Vol. XV, Vertagus, fig. 16. I. , \. Man. of Conch. Vol. IX, p. 140, PI. 28, fig. 5 [gemmatum pars). . Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 33, PI. 7, fig. 8, 9. 56 i65 Stat. 66. Bank between islands of Bahuluwang and Tambolungan, South of Saleyer. 8 M. Dead coral, Halimeda, Lithothamnion. 4 Spec. Stat. 90. i°i7'.5N., n8°53'E. Celebes Sea. 281 M. Coral, sand and stones. 1 Spec. Stat. 99. North-Ubian. 16 — 23 M. Lithothamnion-bottom. 6 Spec. Varying much in sculpture, one of the young specimens from Stat. 66 has the nodules at the suture much more developed than those from Stat. 99. 4. Clava tenuisculpta Sowerby. SOWERBY. REEVE. Conch. lc. Vol. XV, Vertagus, fig. 22. TRYON. Man. of Conch. Vol. IX, p. 146, PI. 27, fig. 43 [gemmatus pars). Stat. 104. Sulu-harbour, Sulu-island. 14 M. Sand. 1 Spec. Probably only a variety of the preceding species ; the only specimen is young and conse- quently the identification rather uncertain ; in accordance with the figure of Reeve, the spire is more acuminate than in C. articulata. 5. Clava Kochi Philippi. PHILIPPI. Abb. u. Beschr. Vol. III, p. 14, Cerithium, PI. I, fig. 3. Reeve. Conch. Ie. Vol. XV, Vertagus, fig. 26. TRVON. Man. of Conch. Vol. IX, p. 147, PI. 28, fig. 48, 49. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 105, PI. 21, fig. 3, 4? Stat. 4. Djangkar (Java). 9 M. Coarse sand. 1 Spec. Stat. 58. Seba, Savu. Reef. 1 Spec. Stat. 71. Makassar. 27 — 36 M. Mud, sand with mud, coral. 2 Spec. Stat. 133. Lirung, Salibabu-island. 36 M. Mud and hard sand. 6 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 6 Spec. Kobelt, whose figures are not very characteristic, especially not in the shape of the canal, says: " Aus dem indopacifischen Ocean ist sie meines Wissens noch nicht bekannt geworden, wenn nicht etwa Cerithium graniferum Pease hierher gehort". Dunker (Index Molluscorum maris Japonici, p. 108) has recorded the species from Japan, and has observed specimens with brown lines in the interstices of the lirae, more rarely whitish ones, agreeing with Philippi's figures. Previous to this record is that of Lischke (Japanische Meeres-Conchylien, Band I p. 72, Band III p. 49); v. Martens (Moll. Mauritius p. 280) quoted by Kobelt, prefixes an "I" to the species, meaning that it lives also in the Indian Ocean (Nicobaren, Ceylon, Malaischer Archipel). In the majority of the specimens, the interstices of the lirae have distinct brown lines, where they are wanting, this seems to be caused by fading, in dead specimens. The canal, if intact, is by no means so straight as in Kobelt's figures, so I have left the species in the genus Clava = ]Tcrtagus. 6. Clava Pfefferi Dunker. Dunker. Index Moll. Maris Japonici, p. 108, PI. 4, fig. 12—14. Tryon. Man. of Conch. Vol. IX, p. 147, PI. 28, fig. 56 {turritum). KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 145, PI. 27, fig. 12, 13. 57 SinoGA-EXPEDITIE XLIXV'. 22 166 Stat i. 1 Ijan ;ka 9 M. Coarse sand. 1 Spi Statl ilmati Java). 1; M. Coral and stones. 2 Spec. Stat. ; ;. 1 > t > oi Pidjot, Lombok. 22 M. Mud, coral and coralsand. 3 Spec. St.it. 64. Kambar; l.m.di Djampeah. $2 M. Coral, coralsand. 2 Spec. Stat. 71. Mak irroundings. Up to 32 M. Mud, sand with mud, coral. 12 Spec St.it. 142. Laiwui, North coasl -1 > >l>i major. 23 M. Very fine, hard sand, mud. 21 Spec. iay, Buton-strait. 22 M. Sandy mud. m; Spec. ,1. Amboina. 54 M. Coral. 1 Spec. . North potnt of Nuhu Jaan, Kei-islands. 90 M. Sand. coral and shells. 3 Spec. Ll.it. West coast of Great-Kei-island. 27 M. Mud. 2 Spec. Rumah-Kuda-bay, Roma-island. 18 — 35 M. 1 Spec. Noimini, South coast of Ti mor. 9 — 36 M. Sandy mud. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 40 Spec. I'his species lias been ascribed both to Vertagus (= Clava) and Ceritkium. Dunker himself and Tryon, describe it as I 'er/agus, Kobei.t and Watson (Challenger-Gastropoda) as Cerithium. Pilsbry, who in his "Catalogue of the marine Mollusks of Japan, 1895, p. 56, enumerates it as Clava Pfefferi, says in 1901 (Proc. Acad. Nat. Sciences, Philadelphia, p. 393) ■ rhe Vertagus Pfefferi of Dunker is not a Vertagus or Clava, but a true Cerithium". The ' Siboga" -specimens agree in every partioular with the original figure and description of Dunker, bnt if one looks into the apertnre in an oblique direction, one sees a more or less distinct fold on the cohunellar side, which is very strong in young and broken specimens, if one looks however at the adult shell en face, the fold is not visible at all. The species varies not only in colour, at has been stated by DUNKER, bnt also considerably in size. 7. C/ara aspera Linné. LlNNÉ. Syst. Xat. Ed. X, p. 750, N° 500. RUMPH. Amb. Rariteitkamer, p. 100, N° 3. REEVE. Conch. Ie. Vol. XV. Vertagus, fig. 21. TRYON. Man. of Conch. Vol. IX, p. 148, PI. 28, fig. 62. Stat. 93. 1'ulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, --and and coral. 1 Spec. Stat. ? 1 Spec. S. Clava martiniana Pfeiffer. Pfeiffer. Krit. Reg. Martini-Chemn. Conch. Cab. p. 1. RUMPH. Amb. Rariteitkamer, p. 100, PI. 30, fig. K. Kiener. Coq. Viv. Vol. IV, 1 erithium, p. 22, PI. 18, fig. 1 {procerum). Reeve. Conch. Ie. Vol. XV, Vertagus, fig. 9 [fasciatus Tknon. Man. of Conch. Vol. IX \>. 149, PI. 28, fig. '-\ (fasciatus). KoBELT. Martini-Chemn. Conch. 1 ab. Ed. 11. Vol. I. < erithium, p. 26, PI. 6, fig. 1 — 8. 1. 37. Sailus Ketjil, Paternoster-islands. Up to iS M. Coral and coralsand. 1 Spec. Stat. 172. Island of Gisser. Reef. 1 Spec. Though C. fasciata Brug. may \><- only a variety, 1 have foliowed the newest monograph in keeping the two species separated, else the name of Bruguière should have 53 167 priority. It appears tliat the figure of Rumph belongs to this species, rather than to C. vertagus as v. Martens has suggested, the latter being a much more ventricose species. 9. Clava Pharos Hinds. HlNDS. Voy. Sulphur, p. 27, PI. 11, fig. 3, 4. Reeve. Conch. Ie. Vol. XV, Vertagus, fig. 13. TRVON. Man. of Conch. Vol. IX, p. 149, PI. 29, fig. 68. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 10, PI. 2, fig. 3, 4. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. Stat. 240. Banda. 9 — 45 M. Black sand, coral, Lithothamnion-bank. 7 Spec. Stat. 282. Between Nusa Besi and N.E. point of Timor. 27 — 54 M. Sand, coral and Lithotham- nion. 1 Spec. This species is still nearly allied to the preceding one, the specimen from Stat. 282, though not so sharply sculptured as the other ones, has however the same narrow shape. I have not quoted Kiener's C. subulatum Lam., as the figure differs too much from those of the other authors. 10. Clava vertagus Linné. LiNNÉ. Syst. Nat. Ed. XII, p. 1225. KlENER. Coq. Viv. Vol. IV, Cerithium, p. 20, PI. 18, fig. 2. REEVE. Conch. Ie. Vol. XV, Vertagus, fig. 19 [vulgaris). Tryon. Man. of Conch. Vol. IX, p. 149, PI. 29, fig. 69. KüBELT. Martini-Chemn. Conch. Cab. Ed. Il, Vol. I, Cerithium, p. 23, PI. 5, fig. 1 — 6. Stat. 16. Bay of Kankamaraan, South of Kangeang. 22 M. Mud. 2 Spec. Stat. 71. Makassar. Up to 32 M. Mud, sand with mud, coral. 1 Spec. Stat. 78. Lumu-Lumu-shoal. Borneo-bank. Reef. 1 Spec. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, sand and coral. 4 Spec. Stat. 172. Island of Gisser. Reef. 2 Spec. Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 3 Spec. Stat. 225. South point of South Lucipara-island. Reef. 1 Spec. Stat. 231. Amboina. Reef. 1 Spec. ''Amboina (N. A. M.). 2 Spec. The specimen from Makassar is banded, but less strong than C. tacniata O. & G. Bittium Gray. ] . Bittium glariosum Gould. Gould. Proc. Bost. Soc. 1861, p. 387. Reeve. Conch. Ie. Vol. XV, Cerithium, fig. 131. Tryon. Man. of Conch. Vol. IX, p. 155, PI. 30, fig. 19 [glareosum). KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Cerithium, p. 249, PI. 43, fig. 8. Stat. 4. Djangkar (Java). 9 M. Coarse sand. 1 Spec. I owe the identification of this very small specimen, which is moreover a dead shell, to the kindness of Mr. E. A. Smitii, who compared it with the British Museum specimens. 59 i68 Potamides Brongniart. i, mpanot 'uviatilis Potiez & Michaud. MlCHAUD. Cat. Moll. Douai, p. 363, PI. 31, fig. 19, 20. K. Viv. Vol. 1\'. Cerithium, p. 92. PI. 29, fig. 3. . h. Ie. Vol. X\'. Tympanotonos, 11:4. 9. ' 1 onch. Vol. IX, p. 159, PI. 31, fig. 58. reel "t Batjulmati (Java). 15 M. ('mal and stoncs. 1 Spec. Bay ut" Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- sand. 1 Spec. 47. Bay of Bima, near South fort. Shore. i Spec. 2. Potamides ( Tereöralia) paliistris Linné. Linné. Syst. Nat. Ed. XII. p. 1:13. Rumph. Amb. Rariteitkamer, p. 101, PI. 30, fig. Q. KlENER. Coq. Viv. Vol. I\'. Cerithium, p. Si, PI. 1. REEVE. (onch. Ie. Vol. XV, Pyrazus, tig. 2. TRYON. Man. of Conch. Vol. IX, p. 160, PI. 32, fig. 41, 42. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 3$, PI. 8, fig. 1, 2; PI. 9, fig. 1, 2. Stat. 86. üongala, Palos-bay, Celebes. Shore. 1 Spec. Stat. 213. Saleyer. Reef. 1 Spec. 3. Potamides ( Tereöralia) sulcatus Bom. BORN. Testacea Mus. Caes. Yindob. p. 320. RUMPH. Amb. Rariteitkamer, p. 101, PI. 30, fig. T. KlENER. Coq. Viv. Vol. 1\'. p. 89, PI. 27, fig. I, 2. REEVE. (onch. Ie. Vol. XV, Pyrazus, fig. 1. TRYON. Man. of Conch. Vol. IX, p. 160, PI. 32, fig. 46, 47. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. 1, Cerithium, p. 40, PI. 8, fig. 7, 8. Stat. 40. Pulu Kawassang, Paternoster-islands. Coralreef. 1 Spec. St.it. 50. Bay of Badjo, West coast of Flores. Shore. 4 Spec. Stat. 71. Makassar. Up to 32 M. Mud, sand with mud, coral. 1 Spec. Stat. 86. Dongala, Palos-bay, Celebes. Shore. 4 Spec. tat. 131. Beo, Karakelang-islands. Reef. 5 Spec. Varying much in shape and si/r. the smallest fullgrown specimen from Stat. 86, reaching only a length of about 30 Mill., the largest from Stat. 50 of 47 MUL, but I have seen larger ones. Cerithidea Swainson. 1. Cerithidea ornata A. Adams. A. Adams. Thes. Conch. Cerithium, p. 887, PI. 186, fig. 277, 278. i'h. Ie. Vol. XV, Cerithidea, tig. 22. Man. of Conch. Vol. IX, p. 162, PI. 33, fig. '4. tini-Ch mn. Conch. Cab. Ed. II. Vol. I. Cerithium, p. 51, PI. 11. tig. 1, 2. 60 169 Stat. 200. Bara-bay, North coast of Buru-island. Up to 54 M. Mud and stone. 7 Spec. Rather variable in the bands, which are more or less broad and distinct, this latter difference may however be due to the state of freshness of the shell, though they are all living specimens. Cerithiopsis Forbes & Hanley. 1. Cerithiopsis (Seiia) Versluysi n. sp. PI. XI, fig. 7. Stat. 231. Amboina. Reef. 1 Spec. Shell small, turriculate, brown, with about 10 postnuclear, flat whorls, the nuclear ones wanting; each whorl with three spiral ribs, of which the upper and basal ones are thick, the median one is narrower, the interstices are wider than the ribs, distinctly radiately striate; on the last whorl the number of spiral ribs amounts to five, two ribs appearing below the peripheral one : moreover two small intermediate striae appear towards the aperture. Suture not conspicuous. Aperture subquadrangular, right margin straight, simple, but not sharp ; columellar margin smooth, with a rather thick layer of enamel, upper corner of the aperture with an entering rib, formed by a continuation of the most basal of the lirae, canal short, rather wide, directed towards the left. Alt. 51/,, lat. 2 Mill. This small species may be allied to C. dextroversa Ads., by its sculpture consisting of 3 carinae of which the central one is smaller, but that species is whitish, much larger and has a larger number of whorls, for even if complete, the new species scarcely could have more than 1 2 whorls. Argyropeza Melvill & Standen. 1. Argyropeza divina Melvill & Standen. PI. XV, fig. n. Melvill & Standen. Proc. Zool. Soc. Lond. 1901, p. 372, PI. 21, fig. 3. Stat. 139. o°ii'S., I27°25'E. Molucca-Passage. 397 M. Mud, stones and coral. 1 Spec. Stat. 312. Saleh-bay, North coast of Sumbawa. 274 M. Fine, sandy mud. 7 Spec. Part of the specimens is slightly larger than the type described by Melvill and Standen, moreover they are more or less variegated with brown. The operculum is rounded-oval, with many whorls, I think about 8, of which the outer ones are broad, the central ones so small that I cannot count them with accuracy. The radula is exceedingly small and of difficult observation, its breadth being scarcely 1/G of a Mill., its length could not be ascertained, as it feil to pieces, but it may not have exceeded 72 Mill. The rhachidian tooth (R) has a broad, subquadrangular shape, with curved sides, the cusp has one larger denticle and three smaller ones on each side, it seems that along the basal margin, runs a narrow very indistinct zone, but by the excessive thinness, I am not quite certain about this, the laterals (1) have an elongately subrhombical shape, the cusp has one 61 ITO - denticle and one proximal, 5 distal, smaller ones, the uncini (U are very slender, rather long and considerably curved, one of the two rows seems to 1»- verj indistinctly denticulate \~> to the systematic position ol this species, I think it advisable to keep it as the type et a sep s, the rhachidian and lateral teeth resemble in several particulars the rïgures of radulae of I ithiopsis and Litiopa by Tkiwiim iCiebiss der Sclinecken PI. XI, fig. \i and ij l>nt the uncini seem to be more slender and are distinctly denticulate in these 1 Argyropeza, the denticles, if they exist at all, are very faint. The operculum n described by Fisi her (Manuel de Conchyliologie) as suboval, paucispiral, with sublateral nucleus, placed at the left side of the aperture, that of Litiopa as oval, very thin, paucispiral. with subterminal nucleus. As stated above the operculum in Argyropeza is multispiral and has a subcentral nucleus. From Bit Hum, of which 1 find no description the radula, it should be distinguished by its many-whorled operculum. 2. Argyropeza Melvilli n. sp. PI. XII, fig. 1. Suit. 102. 6°4.i X., I20°44'E. Sulu Sea. 535 M. Fine, yellow sand. 1 Spec. Shell small, pyramidal, white, whorls 1 1 '/,, of which nearly 2 form the nucleus. the first is rather bulbous and smooth, the second radiately ribbed one is also swollen; remaining whorls regularly increasing, slightly contracted above and below, nearly straight towards the middle, with two spiral rows of pointed nodules, connected by slight spirals and oblique radiating ribs, moreover the shell has a thin spiral, just above the linear suture. The rest of the surface is smooth and shining, with a slight nacreous lustre and with numerous fine growth-striae. Body- whorl conspicuously keeled below the periphery and with a second keel at some distance on the smooth base. Aperture subrhombic, outer margin thin, angulate at the end of the lower row of nodules, columellar margin rounded, slightly curved, ending in a point, where it joins the basal margin. Alt. io1/., lat. 31/,: apert. alt. r/p lat. i1/, Mill. This species has much puzzled me, more than once I had compared it with the preceding one, but the very different nucleus and the aperture abstained me from considering it as belonging to the genus Argyropeza, unfortunately the operculum and the soft parts are wanting; at last I asked the assistance of Mr. J. CoSMO Melvill, who suggested it would be a Cerithopsoid shell, probably belonging to the genus Argyropeza. As to the different nucleus, I found it had much resemblance with that of Cerithium obeliscoides Jeffr. (Proc. Zool. Soc. Lond. 1885, . PI. VI, fig. 4 . Jeffrevss (1. c. p. 59) divided the species of Cerithiopsis in two sections: -A. typical with acuminated apex and B. Eumeta Mörch, Apex blunt". If the species nou under consideration, really belongs to the genus Argyropeza, this genus could be divided in the same inner. I have named it after one of the authors of the genus. The new species is larger, with less convex whorls than A. divina, it has a nearly smooth base and quite different nucleus. 62 171 Fam. Planaxidae. Planaxis Lamarck. i. Planaxis sulcatus Born. BORN. Mus. Vindobon. p. 250, PI. 10, fig. 5, 6. REEVE. Conch. Ie. Vol. XX, Planaxis, fig. 4. Trvon. Man. of Conch. Vol. IX, p. 276, PI. 52, fig. 22, 23. Stat. 19. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- sand. 18 Spec. Stat. 47. Bay of Bima, near South fort. Shore. 3 Spec. s:Java (N. A. M.). 27 Spec. A very variable species; I cannot detect however specimens agreeing sufficiently with the species or varieties brevicnlns Desh. or Savignyi Desh. 2. Planaxis nigra Quoy & Gaimard. Quov & Gaimard. Voy. Astrol. Zool. II, p. 491, PI. 33, fig. 22—24. REEVE. Conch. Ie. Vol. XX, Planaxis, fig. 13. Trvon. Man. of Conch. Vol. IX, p. 278, PI. 52, fig. 37. Stat. 165 North-east side of Daram-island, East coast of Misool. Reef. 24 Spec. The specimens are young; from the West Indian P. nucleus Wood they differ by their convex whorls, from P. abbreviata Pease, in being larger. Tryon (1. c.) has for that species given a length of y1^ MUL, whereas the juvenile specimens under consideration, reach a length of 10 MUI. The specimens have a white nucleus, one groove below the suture and a few ones near the base. Quoyia Deshayes. 1. Quoyia decollata Ouoy & Gaimard. PI. XVI, fig. 4. Quov & Gaimard. Voy. Astrol. Zool. II, p. 489, PI. 33, fig. 33, 34. Reeve. Conch. Ie. Vol. XX, Planaxis, fig. 37. TRYON. Man. of Conch. Vol. IX, p. 280, PI. 53, fig. 71. Stat. 131. Beo, Karakelang-islands. Reef. 32 Spec. Operculum paucispiral, with a subterminal nucleus on the left or columellar side. The radula is rather long, about y1/i MUL in length; its rhachidian tooth (R) has a broad body, with elongated wings on each side and an appendix at the basal margin, cusp broad, rounded, two clenticles on the body or basal part; lateral tooth (1) with apparently sub- triangular body, with a long tail at the distal side, a large reflected cusp and 3 smaller denticles on its distal side, probably also a few on the proximal side, which are however covered by the central cusp; uncini (U), with an elongate body, the inner one has a cusp with 6 denticles, moreover if placed in a favorable position, I see a very thin part along the body, ending in a 63 1 72 denticle which is separated from the body, by ;i distinct sinus; the outer one lias 8 or g denticles and a ven thin plal triangular shape. [f the teeth lay in their natural position the uncini i • ther in such a degree, that their arrangement is scarcely clear, so it mieht be that :1 the appreciation of what is the inner and outer of the uncini. This description I) in part with that of the radula of Planaxis by Trosc ('n-biss der Schi ' I. !>■ 150, 151, PI. 12, fig. 7—01. for though the rhachidian tooth is reallj of tl' on, the uncini an- quite different by tin- latera] appendices. In this respect thej with Ceritkidea and Pyrazus il. c. PI. 12, fig. 4 and 5), I have conscquently Lample of Fischer (Manuel de Conchyliologie) Tryon (1. c) and others, who as a subgenus of Planaxis-. 1 think that its conchological character of the columella, together with the differences in the radulae, wil] be fully sufficiënt, to keep 1 separate. l-'am. Mi 'in 1 1 1 > \i . Modulus Gray. 1. Modulus tectum Gmelin. GMELIN. Syst. Nat. Ed. XIII. p. 3569. Tky<>\. Man. of Conch. Vol. IX, p. 260, PI. 48, tig. 87. Stat. 17. Sailus-Ketjil, 1'aternoster-islands. 27 M. Coral and coralsand. 1 Spec. Stat. ? 1 Spec. Both specimens are still yo.ung, that from Stat. 37 is moreover broken, but sufhciently characteristic. 1'am. TrIPHORIDAE. Triphora Blainville. 1. Triphora (Euthymia) princeps Sowerby. Proc. Mal. Soc. Lond. VI, 1904, p. 174 (fig.). Stat. 60. Haingsisi, Samau-island. Keef. 1 Spec. The only specimen, though young lit has only a length of 24 Mill. instead of 57) is still a giant in the genus. Sowerby (l.c.) did not know the habitat of this species, described after ;iecimen, from the collection of the late admiral Keppel. 2. Triphora (Euthymia) sculpta Hinds. HlNDS. A1111. and Mag. "f Nat. Ilist. Vol. XI, 1843, p. 17. TRYON. Man. of Conch. Vol. IX. p. 17S, PI. 37, fig. 82, 83. 1. Kilsuin, West cuast of Kur-island. 27 M. ('mal and Lithothamnion. 1 Spec. 64 '73 The specimen is very large, nearly 17 Mill., the length stated by Hinds (l.c.) being only 41/2 line; it perfectly agrees with a younger specimen, received from Sowerbv, with the locality "New-Caledonia". At the base of each whorl is still a small liration, articulated with white and brown ; the whole shell between the lirae is covered with microscopical spiral lines. 3. Triphora (Euthymia) clegans Hinds. Hinds. Ann. and Mag. of Nat. Hist. Vol. XI, 1843, p. 18. TRYON. Man. of Conch. Vol. IX, p. 189, PI. 39, fig. 62. Stat. 125. Sawan, Siau-island. Reef. 1 Spec. The specimen, which is not complete, perfectly agrees in sculpture and colour with a specimen received from Sowerby from New-Caledonia, under the name of picturata Sow. (Proc. Mal. Soc. Lond. IV, p. 210, PI. 22, fig. 11), which according to Smith (Fauna of the Maldive and Laccadive Archipelago, Vol. II, part 2, p. 613) is a synonym of T. elegaus. The species, like the preceding one has very fine spiral striae between the lirae. 4. Triphora (Euthymia) Vershtysi n. sp. PI. XI, fig. 8. Stat. 310. 8°3o'S., ii9°7'.5 E. Flores Sea. 73 M. Sand with few pieces of dead coral. 1 Spec. Shell rather large, conical, with slightly convex sides. Nuclear whorls wanting, remaining ones about 12, concave, with two spirals, consisting of beads, the basal one the strongest, between these two, but nearer to the upper one, runs a third spiral, which is much narrower and not beaded but waved, at the shallow suture a tracé of a fourth spiral makes its appearance, it is quite visible on the last whorl, where it proves to be less strong than the basal one of former whorls, and to be less conspicuously beaded, it is accompanied by a fifth spiral, placed at a small distance ; moreover the whorls are sculptured by perpendicular grooves and flat ribs, connecting the beads of the upper and lower rows of beads, and finally the whole shell with exception of the beads, is covered with microscopical spirals and radiating striae, which fill also the space between the 5th liration and the canal, the base is also plicated by a few radiating folds; the beads of the upper row on each whorl are constantly yellowish, those of the basal row alternately (but not regularly) white and yellowish-brown, with occasionally brown spots between them, the colour of the rest of the shell is of an ashy violet. Aperture subquadrate, columellar margin thickened, with two small callosities, of which the lower one borders the short canal, which is a little curved backwards. Long. (incl. canal) 13, lat. 31/., Mill. The specimen is slightly bleached by time, perhaps by the action of spirits. I know no species to which it is really allied, but it has a superficial resemblance with T. malvacea Jouss. belonging however to another section of the genus. 5. Triphora (Euthymia) Schmidti n. sp. PI. XI, fig. 9. Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 1 Spec. Shell narrowly conical, with nearly straight sides, but slightly acuminate. Nuclear whorls 65 SIBOGA-EXPEDITIE XLIX1^. 23 Tl wanting, remaining whorl onvex, each with 4 spirals, of which the uppermost is placed at a smal! distance from the suture, the thirtl is the most prominent and th<- fourth borders the lower suture, these spirals are not really beaded, but waved by the radiating grooves and tl.it ribs covering the shell; on the second and third spiral however, they have more or less th<- appearano essed beads, moreover I see very line growth-striae. Colour whitish, with yellowish-brown upper spirals and small brown spots between the beads of the third spiral; last whorl carinated by the fourth spiral, its base radially striate, bearing a fifth spiral. Aperture subquadi r, with a small notch in the upper corner, columellar lip callous belovv, canal short, towards the right and backwards. Long. (incl. canal) io1/.,, lat. 21/, MUI. 6. Triphora (Euthymiaj pura Smith. Smitii. Fauna Maldive and Laccadive Archipclago. Vol. II, part. 2, p. 614, PI. 35, fig. 20, 21. Stat. 47. Bay of Bima, near South fort. 13 — 54 M. Mud with patches of fine coralsand. 1 Spec. Stat. 90. North-Ubian, Sulu-archipclago. 16 — 23 iM. Lithothamnion-bottom. 1 Spec. Larger than the type, which is only 14 MUI. in length, the Siboga-specimens are 17 and 18 MUL, the latter is adult, the former is still young. 7. Triphora sp. Stat. 95. 5°43'.5 N., U9°40 E. Sulu Sea. 522 M. Stony bottom. i Spec. The specimen is not adult, the nuclear whorls are wanting, it is worn and bleached. I cannot identify it with any of the known species, but it is in too bad condition for description and I only make mention of it, as it would be remarkable for the great depth at which it has been dredged. It is however not certain that it has really lived there. 8. Triphora (Iniforisj fuscoapicata Sowerby. SOWERBY. 1'roc. Mal. Soc. Lond. VII, 1907, p. 301, PI. 25, fig. 9. Stat. 93. Pulu Sanguisiapo, Tawi-Taw i-islands, Sulu-archipelago. Reef. i Spec. The specimen is slightly larger than the type, having a length of nearly o1/., Mill. instead of 51/,, but a cotype received from the author, from the island Cebu, the original locality, is even 7 Mill. in length. Both specimens perfectly agree. The brown apical whorls are not smooth, as has been stated in the description (l.c.i but only the uppermost one may be called so, the other are bicarinate and are crossed by narrow riblike striae. 9. Triphora (Iniforis) concors Hinds. Hinds. Ann. and Mag. Nat. I list. Vol. XI, 1843, p. 17. M.m of Conch. Vol. IX, p. 17S, PI. 37, fig. 80. Stat. 47. Bay of Bima, near South fort. 14-31 a,u' 55 M. Mud with patches of fine coral- sand. 3 Spec. 66 i75 Stat. 90. i°i7'.5N., u8°53'E. Celebes Sea. 281 M. Coralsand and stones. 2 Spec. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, sand and coral. 1 Spec. Stat. 95. 5°43'.5 N., U9°4o'E. Sulu Sea. 522 M. Stony bottom. 1 Spec. Stat. 240. Banda. g- — 45 M. Black sand, coral. 1 Spec. Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 1 Spec. Neither Hinds nor Tryon (1. c.) have made mention of the colour of this species ; it is white with brown apical whorls, vvhich are however wanting in most specimens; the somewhat rude figure of Tryon, which should be a copy of Hinds' figure in the Voy. "Sulphur" is brownish. Mr. E. A. Smith has compared a specimen from Stat. 47, so I have no doubt about the identity. The specimens recorded from the great depths are dead shells. T. fuscoapicata Sow. much resembles the species under consideration, one might think it could be a dwarf-form. 10. Tripliora (Viriola) corrugata Hinds. Hinds. Ann. and Mag. Nat. Hist. Vol. XI, 1843, p. 18. Tryon. Man. of Conch. Vol. IX, p. 189, PI. 39, fig. 59. Stat. 37. Sailus Ketjil, Paternoster-islands. Up to 18 M. Coral and coralsand. 1 Spec. Stat. 60. Haingsisi, Samau-island. Reef. 2 Spec. Stat. 66. Bank between islands of Bahuluwang and Tambolungan, South of Saleyer. 8 M. Dead coral, Halimeda and Lithothamnion. 2 Spec. Stat. 71. Makassar. Up to 32 M. Mud, sand with mud, coral. 1 Spec. Stat. 99. North-Ubian, Sulu-archipelago. 16 — 23 M. Lithothamnion-bottom. 1 Spec. Stat. 114. Kvvandang-bay-entrance, North Celebes. 75 M. Hard sand, very fine. 1 Spec. Stat. 123. North-bay, Biaru-island. 27 — 36 M. Stone and Lithothamnion-bottom. 1 Spec. Stat. 162. Between Loslos and Broken-island, West coast of Salawatti. 18 M. Coarse and fine sand, with clay and shells. 1 Spec. Stat. 164. i°42'.S S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 2 Spec. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 3 Spec. Stat. 285. South coast of Timor. 34 M. Limit between mud and coral. Lithothamnion. 2 Spec. Stat. 315. East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 1 Spec. Variable in size, in colour and in sharpness of the keels, however these latter differences may depend on the more or less fresh condition of the shells. 11. Triphora (Viriola) cancellata Hinds. Hinds. Ann. and Mag. Nat. Hist. Vol. XI, 1843, p. 18. Tryon. Man. of Conch. Vol. IX, p. 189, PI. 39, fig. 64. Stat. 285. South coast of Timor. 34 M. Limit between mud and coral. Lithothamnion. 1 Spec. Stat. 310. 8°3o'S., U9°7'.5 E. Flores Sea. 73 M. Sand with few pieces of dead coral. 1 Spec. This fine species has been recorded by Hinds and Tryon only from the Strait of Malacca. 12. Triphora (Mastonia) rubra Hinds. Hinds. Ann. and Mag. Nat. Hist. Vol. XI, 1843, p. 19. Tryon. Man. of Conch. Vol. IX, p. 1S2, PI. 58, fig. 13—16. HEDLEY. Memoirs Austral. Mus. Vol. III, 1899, p. 441, fig. 29. 67 176 St.u. 47*- Entrance ba M. Fine sand. 2 Spec. St.it. 213. South-island, ncar Saleyer. Reef. 1 Spi The specimen from Stat, 213 is rather young but agrees in sculpture with those from the bay of Bima. 1 ;. / Mastonia ?) sp. . Pulu Sangui rawi-Tawi-islands, Sulu-archipelago. 12 BA. Lithotharanion-bottom : and coral. 1 Spec. The specimen is too young to ascertain even its subgeneric position. 14. Triphora Mastonia J sp. Stat. 2j$. Pulu Jedan, Kast coast of Aru-islands. 13 M. Saiul and shells. 1 Spec. The specimen, though probably belonging to an undescribed species, is too young for ription. [5. Triphora {I nel la) sp. Stat. 310. 8° 30 S., ii9°7'.5 E. Flores Sea. ~ji M. Sand with few pieces of dead coral. 1 Spec. The only specimen is not quite adult and of irregular shape, by having been broken in its youth, so I don't venture to describe it as new. Fam . Tric noTKOi'i n.\ E. Trichotropis Broderip & Sowerby. 1 . Trichotropis pulchcrrima Melvill & Standen. MELVILL & STANDEN. Ann. and Mag. Nat. Hist. Ser. 7, Vol. XII, p. 296, PI. 20, fig. 15. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. The "Siboga"-specimen is smaller than the type, being only 16 Mill. in length, the type 24 Mill., the columellar margin is not so straight as is the quoted figure. I think these differences may depend on age or be individual. Shape and sculpture agree so well with the figure, that I dare not describe a new species on such slight differences. One should expect to find such an tic animals only at considerable depths, but the specimen from the Gulf of Oman has been found at 25 fathoms. 2. Trichotropis orientalis n. sp. PI. XII, fig. 2. Stat. 211. 5°4o'.7S., i20°45.5E. Banda Sea. 115S M. Coarsc grey mud. 1 Spec. irbinate, subdiscoid, with three strong keels or spiral ribs on the last whorl, own. Whorls 6, of which 4 nuclear ones are smooth, convex, and form a small cone; 68 i77 subsequent whorls 2, the upper one with 2, the last with 3 strong keels; these whorls are flat between suture and upper keel, more or less concave between the lower keels and towards the base. Sculpture consisting of faint spiral grooves with rather large interstices, crossed by stronger growth-striae, the keels of last whorl are sculptured by strong spirals, the shell is covered by a thick, fibrous, yellowish-brown epidermis, with strong grooves, a few spinous fibres are visible here and there on the keels. Aperture subcircular, but with many angles, of which one at the upper part, three are formed by the keels, which are hollow interiorly, and one by a basal channel. Columellar margin concave, interrupted by the basal keel, tortuous below, terminating in a blunt point, joining the basal margin by the rounded basal channel, the columella is provided with a layer of enamel, nearly covering an umbilical slit.. Operculum oval, corneous, with some strong ribs at the distal margin. Alt. 131/.,, lat. 16; apert. alt. 91/,,, lat. 71/;,, with keels 8l/„ Mill. This is a very remarkable species; amongst those described it has only a remote resemblance with T. bicarinata Brod. and Sow. and T. coronata Gould, it differs however so much from both, that it is not necessary to insist upon the differences. The three very strong, hollow spiral keels are most characteristic. As to the generic position, the epidermis, shape of aperture with basal channel and the operculum have guided me. As I would not destroy the only specimen, I was unable to examine the radula. Genus ? 1. sp. PI. XII, fig 3; PI. XVI, fig. 3. Stat. 211. 5°4o'.7S., i20°45'.5 E. Banda Sea. 1 1 58 M. Coarse grey mud. 2 Spec. I found in the same tube containing the former species, two smaller shells, both perhaps young, which I could not identify even generically ; they have a superficial resemblance with the new Trichotropis, by being turbinate, with a fibrous epidermis and three keels, but these keels are much less sharp or conspicuous, and the chief difference consists in the aperture, which is slightly angular but not channelled below, the number of whorls is about 4 of which about i1/* form a rather large nucleus, and 2l/2 are depressed above, between the conspicuous suture and the uppermost keel. Alt. 61/,, lat. 61/,; apert. alt. 31/,, lat. 31/, Mill. I sent the largest specimen to Mr. E. A. Smith, who was also in doubt about its syste- matic position, so I have abstained myself from naming it. The radula resembles more that of Crucióulum than of Trichotropis, the rhachidian tooth (R) is subquadrangular, with a large multicuspidate cusp, I see 8 small denticles on each side of the median one, the laterals (1) are subrhombic, with a long cusp with denticles on both sides, about 8 on the distal side; the uncini (U) are elongate, with a few denticles near the point. This latter character is not in accordance with what is known of Trichotropidae. (Should it be possible that these small denticles have been overlooked? In - Trichotropis the teeth much cover each other). 69 Fam. Si gi i nzidai . Seguenzia Jeffreys. ,. S UU n. sp. PI. XII, fig. 4; PL XV, fig. 12. 119 8'.s 1".. [301 M. Fine grey mud. 1 Spec. Shell ui"' ■ for the genus, conical, scalar, urabilicate, whitish. Whorls about 7. , upper whorls eroded, lower ones each with thr.ee spiral lirae, of which the upper il .1 little distance from the shallow hut distinct suture, which is slightly undulate; from tl.' liration to the second, the shell is slightly convex, this latter liration is strong, ninent and divides the whorls in two subequal parts; below this liration the shell is concave rds the basal or peripheral liration, which in the upper whorls, runs just in the suture and in the last one borders the basal surface; these lirations are slightly spinous ; distinct undulating plications run from one to the other of the lower lirae, with the convex side towards the aperture, on the upper part they are directed in an opposite way, being less distinct about halfway the interspace between the upper and median liration; moreover the whole shell is covered with much weaker striae, having the character of growth-striae and traces of more remote spiral striae. Basal face subconvex, hut quite flat in the centre, with a shallow groove between the peripheral keel and the first of the basal lirae, this space is rather smooth, though crossed by plicae running from the peripheral spines in an oblique direction; the outermost of the basal lirae, which is not broad, is foliowed by two similar ones, about as strong as their interstices, the central ones, fïve in number, increasing in breadth towards the centre, (one of them nearly doublé) being larger than the interstices, these lirae are connected by small radiating riblets in the interstices; umbilicus horderee! by a liration, consisting of a row of subquadrate beads, this umbilicus is pervious, funnclshaped, its wall is radiately striated and has one faint spiral rib. Aperture rounded-subquadrate, its right margin incomplete, its columellar margin curved, with a denticle in the basal part, it is slightly reflected over the umbilicus. Interior nacreous, (the nacreous texture of the inner layers is clcarly visible on some of the exterior parts, where the outer layer has been removed by accidents during the youth of the animal). Alt. 4'/,., lat. 5'/,;; apert. alt. r/r lat. 2a/4; diameter of umbilicus about 1 MUI. This species has by its conical shape some resemblance with S. trispinosa Watson, but that species is considerably smaller, with less distinct spines, which have more the character of rounded tubcrcles, it has smooth interstices, without the conspicuous plications of the new species. The circumstance that the base of the specimens of trispinosa which 1 could compare is much smoother, seems to give no reliable distinguishing-character, at least Watson ("Challenger"- p. 1 ioj says : "has some faint spirals". I have named the new species in honour of Mr. J. (.'. Mi.i.vii.i., who has kindly sent me for comparison all his materials of this genus. to the radula of this species, it is a very small and rather obscure object, and only pieces, I could get an idea of the shape of the teeth, the uncini quite covering lian rows, and crossing even the uncini of the opposite side. The rhachidian or median subquadrate basal part, with rounded, convex posterior and less convex lateral 70 179 margins, it has a broad, triangular cusp, with one small median denticle and about 6 smaller ones on each side; the laterals (i) one on each side, have a transversely triangular shape, with an unarmed, arched upper and concave proximal and basal margin, with blunt points at the proximal and distal extremities of the basal margin; on each side I see at least 3, but I suppose there are 4 uncini (U) which are long, slender and strongly curved. Though this radula has some resemblance with that of Aporrhais, like Verrill (Mollusca of the New England coast, Transact. Connecticut Acad. of arts and sciences, Vol. VI, May 1884, p. 186 and 188) has stated, and like his figure (1. c. pi. 31, fig. 14^) affirms, I cannot agree without doubt with his view that it should be Taenioglossate, as the "Siboga"-specimen has a radula with at least 9 rows of teeth and probably 11. The nacreous character of the shell agrees with the Rhipidoglossa, and so does the larger number of uncini. I should think the genus will belong to the Rhipi- doglossa with a restricted number of teeth, such as Basilissa. As however only a knowledge of other anatomical particulars, the position and structure of the gills, of the heart etc. can decide the question I have left the family near Trichotropis, in accordance with the newest systematic arrangement of Pelseneer (A treatise on Zoology, edited by Ray Lankester, Part V, Mollusca, 1906, p. 156. 2. Seguenzia Datitzeuöergi n. sp. PI. XII, fig. 5. Stat. 88. o°34'.6N., H9°8'.sE. Makassar Strait. 1301 M. Fine grey mud. 1 Spec. Stat. 178. 2°4o'S., I28°37'.5E. Ceram Sea. 835 M. Blue mud. 1 Spec. Stat. 211. 5°4o'.7 S., i20°45'.5 E. Banda Sea. 1 1 58 M. Coarse grey mud. 1 Spec. Shell rather small, spire forming a short gradate cone, umbilicate, whitish-yellow. Whorls 7, of which the uppermost forms the smooth nucleus, foliowed by about 2 whorls with a sub- median keel and displaying a cancellated appearance by the intercrossing of subequal spiral and radiating riblets. The other whorls have each 3 spirals, of which the uppermost runs at a little distance from the suture, the next which is the strongest, renders the whorls carinate about halfway, and a third which seems to run just in the rather conspicuous suture-, moreover the interstices have more or less numerous fine spirals (numerous in the type, where they quite fill the spaces) ; this spiral sculpture is crossed by radiating riblets, running straight in an oblique direction, from the suture to the upper spiral, where they form small crenulations, in the next interstice they are concave and at last convex towards the basal liration; last whorl rounded, with a strong peripheral keel, being the basal one of the upper whorls, and a convex base, with another spiral at some distance from the peripheral keel, and 1 2 basal spirals of which three more spaced ones, at a larger distance from the subperipheral spiral, and 9 more central spirals, which are flatter, at subequal distances, the innermost bordering the umbilicus; these spirals are connected by small radiating riblets in the interstices, moreover these interstices are filled, as far as I can see, with similar finer spirals as in the spire. Umbilicus moderately wide, probably pervious, funnel-shaped, its wall with fine radiating striae and a conspicuous spiral groove, terminating in a strong dentiform projection on the columellar margin. Aperture moderately large, irregular in shape, with a rather deep sinus at the suture (about i1/, Mill, behind the most projecting part of the outer margin), it is rounded behind, with an upturned margin ; the 71 margin is thin, angular b) the terminations of the spiral keels; columellar margin strongly excavated above, thi ing bordered by the strong toothlike projection forrned at the end of the umbilii ' the appearance oi a compressed fold; below this tooth, the columellar margin runs obliquely back and terminates in a projecting point where it joins the slightl) curved basal margin. Interior nacreous. Alt apert. alt. 2'/t, lat. i ',.. ; diam. of umbilicus about , Mill. This description is made after the specimen from Stat. 178, which was the must complete one, the "( ::^ slightly differ by the number and disposition of the basal spirals, and more considi in the finer spirals of the interstices between the keels, which in some parts rly wanting and are, for instance, reduced to 1 and 3 in the spaces below the infra- sutural spiral and above the peripheral keel in the specimen from Stat. 88, as however all other chara ire really the same, 1 think these ditïerences will prove to be individual. I maybringin ■mbrance what Dall says (Buil. Mus. Comp. Zool. Vol. XVIII, p. 269), dealing on Seguenzia: -Hithcr each separate individual is to be regarded as a species, or the variability is very great. Persistant study of the specimens has convinced me, that the latter is the true solution, and that the most evident characters, such as the umbilicus (in some adult specimens) may be present or absent, that the number of spiral threads, thcir strength and sharpness on the basal disk. are entirely inconstant". This species seems to be nearly allied to S. elegans Jeffr. (Proc. Roy. Soc. 1876, p. 200, Proc. Zool. Soc. Lond. 1885, p. 42, PI. 5, fig. 1, ia) but the radiating sculpture in the new species is much less crowded and coarser, the same is the case with the basal spirals, the new species is less flattened below the suture, more conical etc. These ditïerences in specimens from such a remote provenience, have induced me to consider them as specifically distinct. 3. Seguenzia Sykesi n. sp. PI. XII, hg. 6. Stat. 241. 4° 24.3 S., I2Q°49'.3 E. Banda Sea. 1570 M. Dark sand with smal! stones. 1 Spec. Shdl small, subglobose, spire forming a short, subgradate cone; umbilicate, whitish-yellow, with a slight nacreous lustre. Whorls about 6, of which about one forms the blunt, smooth nucleus; the next whorls, including the penultimate, have only one strong median keel, the space above and below this keel is slightly concave, with a few microscopic spiral threadlike striae; two whorls next to the nucleus are crossed by conspicuous radiating riblets, straight but in an oblique direction above the keel, convex below it, these riblets then suddenly disappear, only very fine striae succeeding them. being scarcely perceptible on the last whorl, with is ■inate; a third keel borders the flattened base; suture rather conspicuous but shallow, with very slight ti of being margined, probably by the covered keel; base with 7 spirals of which distal one, separated from the third keel by a slightly concave space, and one bordering the umbilicus are stronger; moreover the whole base is covered with microscopic radiating striae, :autifully waved in an S-like manner. Umbilicus moderately wide, pervious, funnel-shaped, wave-striated, with a shallow spiral groove terminated by a tooth on the columella. irregularly subquadrate, its outer margin so much broken, that no sinus remains, it 72 IÖI is strongly sinuous by the terminations of the keels, of which the upper one becomes doublé at a little distance from the mouth, columellar margin connected to the outer one, by a thin layer of enamel on the body-whorl, it is first strongly excavated above by a rather deep sinus, reaching the columellar tooth, below this tooth it is again concave and terminates in an angle when it joins the basal margin at the point terminating the umbilical keel. Alt. 3, lat. 31/., ; apert. alt. i5/,., lat. i3/5, diam. of umbilicus about i Mill. These measurements will be more or less altered in a specimen with complete aperture. This new species has some resemblance with S. elegans Jeffr. but differs sufficiently by the number of keels and by the aperture, which, though broken, has other characters, the columella in elegans being much longer than it can be in a complete specimen of 5. Sykesi, the whole shape of S. elegans is consequently more obliquely elongate, the sculpture is much less developed in the new species. It has also resemblance with 5. polita Verco (Trans, and Proc. Roy. Soc. South Austr. Vol. 30, 1906, p. 222, PI. 9, fig. 3, 4, 5), especially in its sculpture, but that species, according to Verco (1. c. PI. 9, fig. 5) is only rimate and the keels are blunt and placed in a different manner. The nearest ally is .S'. tonica Wats. (Journ. Linn. Soc. Lond. 187S, Vol. 14, p. 589; " Challenger"-Gastrop. p. 107, PI. 7, fig. 3), and indeed I have been in doubt if it should not be an oriental variety, but that species, as figured, is much more depressed, has a more conspicuous liration at some distance from the suture, and the radiating sculpture seems to be more conspicuous in 5. ionica. Named in honour of Mr. E. R. Sykes, who has sent me for comparison a beautiful lot of specimens of this genus. 4. Segnenzia costnlifcra n. sp. PI. XII, fig. 7. Stat. 211. 5°4o'.7 S., i2o°45'.5 E. I!5§ M. Coarse grey sand. 1 Spec. Shell rather small, conoidal, with a high spire and convex base, scalar, rimate, yellowish- white. Whorls about 7, of which the upper one forms the smooth, bulbous nucleus, foliowed by 2 whorls, which have a strong median keel and traces of a third one below the suture; these lirations become more conspicuous on the lower whorls, which have the median keel, another one just below the suture and in some parts traces of a third one, running entirely or partly in the deep suture; moreover the whole shell is covered with microscopic, close-set, spiral threads; this sculpture is crossed by conspicuous riblets, fainter on the upper whorls, very strong on the lower ones, and by very fine growth-striae ; the riblets are not close-set and form conspicuous spines below the suture of the lower whorls; when they cross the upper spiral, they run obliquely from behind and are curved in the lower part of the space between the upper and median keel, being concave below; below this median keel they are convex; on the last whorl runs a third keel, which is crenulated by the ribs, this is also the case with the median keel, though not so strong; at some distance from the third keel a fourth one makes its appearance, this is a little fainter and less crenulate, the riblets between it and the third keel being also weaker. The interspaces of the keels described above are conspicuously concave. From the fourth keel untill the centre run 5 spirals, of which the distal one at a considerable 73 SI ROG A-EXPEDITIE XLIX' II. 24 [8a from the 4' keel, the innermost borders the umbilicus; these spirals are narrow, cordlike, with large interspao d by riblets in very various direction. Umbilicus rather large, but nearly closed by the columellar margin, leaving only ;i fissure. Aperture incomplete, a rather id but not deep fissure at the upper part, rounded and turncd up behind; shape of aperture subquadrangular, irregular by the terminations of the keels, columellar margin expanded towards the left, formed by a deep, rounded sinus above and another narrower one below, with a strong tooth between them, this tooth is strongly compressed, as if formed by pinching the columellar margin, Alt. 5. lat. apert. alt. i1/.,, lat. I8/4 Mill. This es resembles, in shape var. lincata Wals. of S. monocingulata (Watson's Journ. Lin. Soc. Lond. Vol, 14. p-587; uChallenger"-Gastropoda, p. 106, PI. 7, fig. 1); but the general outline is more convex and the elaborate sculpture is quite different, so I don't hesitate to describe it as new. 5. Seguenzia sp. Stat. 300. io°4S'.6S., I23°23'. 1 E. Timor Sea. 918 M. Fine, grey mud. 1 Spec. From this Station a specimen has been collected, belonging to the rimatc species, it differs from the preceding one by its l)roader, less conical shape and its very simple sculpture, consisting, as far as I can see, of a strong median keel on the upper whorls, of a very weak one at the upper suture and traces of a third one at the lower suture, which latter keel is conspicuous on the last whorl, moreover very faint interstitial spiral striae, crossed by radiating, threadlike striae. The nucleus and a great deal of the outer layer of the shell are wanting, its beautiful nacreous inner layer being visible in many partS; in consequence the sculpture is only visible on some small parts, as other parts have still suffered of corrosion; the columella and umbilicus have the same character, as in the preceding species. The outer margin of the aperture is quite defective, as well as the basal sculpture. In these circumstances I have not ventured t.i name the species, nor have I accurately described it, though it will be probably new. uenzia monocingulata Seguenza. Seguenza. Buil. del Com. Geol. Vol. VII, 1870. p. 188. VERRILL. Trans. Connccticut Acad. Vol. VI, 1882 — 85, p. 186 (forwosa). TRYON. Man. of Concli. Vol. IX, p. 46, PI. 8, lig. 71. Stat. 137. o°23'.8N., \2]' zij E. Between Makjan and Halmahera. 472 M. Fine, dark, muddy sand. 2 Spcc. Stat. 241. 4°24'.3S., I2y°49'.3 E. Banda Sea. 1570 M. Dark sand with small stones. 1 Spcc. These specimens have much puzzled me, those from the two stations being considerably different. That from Stat. 241 is more slender and lias a coarser sculpture, somewhat different from the specimens collected at Stat. 137. The reasons that I have united them to the Atlantic S. monocingulata are: the greal variability of that species, as already stateil by Dall in his publication on the "Blake" Mollusca, quoted before in dealing with 5. Dautzenbergi\ the differences 74 i§3 in the figures at my disposal, and last not least, the specimens received for comparison of Mr. Dautzenberg and of Mrs. J. C. Melvill and E. R. Sykes, the specimen from Stat. 241 more resembling the specimens of Dautzenberg and Sykes by its stronger, shorter, more remote, concave riblets between the sutural and next keel, while the specimens from Stat. 137, of which one is a beautiful shell containing the soft parts, better agrees with Mr. Melvill's specimens, with weaker, longer, more crowded riblets in the same space, these riblets being nearly straight and only curved in their basal part, in this respect more resembling S. ercmita Verrill (Trans. Conn. Acad. Vol. VI, PI. 31, fig. 15); these latter specimens have the subsutural liration but very little developed, much less so than in the specimens of Dautzenberg and part of those of Sykes, which are slightly variable in this respect. Fam. Vermetidae. This family is perhaps the most disagreeable amongst Gastropods to deal with; the extreme variability in the majority of the species and the often vague descriptions, render it impossible in many cases, to make safe identifications, except in a few instances, if the species have prominent characters. Many of the names applied below are more or less doubtful and not a few specimens must remain without name. In vain I hoped that the keeper of the mollusca in the British Museum, where the types of Mörch are preserved as far as I know, with his usual kindness should give me assistance, but he wrote me he knew nothing about that family ; and though " nothing" will probably be too strong an expression, I could not get the hoped for certainty. Tenagodus Guettard. 1. Tenagodus (s. str.) ponderosus Mörch. MÖRCH. Proc. Zool. Soc. Lond. 1860, p. 409. REEVE. Conch. Ie. Vol. XX, Siliquaria, fig. 3. Tryon. Man. of Conch. Vol. VIII, p. 188, PI. 57, fig. 11. Stat. 273. Pulu Jedan, East coast of Aru-islands. 13 M. Sand and shells. 5 Spec. The specimens agree very well with the quoted figures, though they are smaller, sur- passing however considerably the other East-Indian species in size. The species has only been recorded from Australia. 2. Tenagodus (s. str.) trochlearis Mörch. Mörch. Proc. Zool. Soc. Lond. 1860, p. 408. REEVE. Conch. Ie. Vol. XX, Siliquaria, fig. 4. Tryon. Man. of Conch. Vol. VIII, p. 189, PI. 57, fig. 14. Stat. 66. Bank between islands of Bahuluwang and Tambolungan, South of Saleyer. 8 M. Dead coral, Halimeda, Lithothamnion. 1 Spec. Stat. 125. Sawan, Siau-island. 27 M. Stone aild some Lithothamnion. 1 Spec. Stat. 144. Damar-island. 45 M. Coral-bottom and Lithothamnion. 2 Spec. 75 [84 Stat. 285. South coast ol rimor. 34 M. Limit between mud and coral. Lithothamnion. 1 Spec. Stat. ^10. 8 jo S.. ng 7.; E. Flores Sea. 73 M. Sand with few pieces of dead coral. 18 Spec. Man\ of the specimens are young and consequently of very doubtful identification. ius Agathirses Cumingi Mörch. Mörch. Proc. Zool. Soc. Lond. 1860, p. 403. REEVE. Conch. fc. Vol. XX, Siliquaria, fig. 2. Man. of Conch. Vol. VIII, p. 190, PI. 57, fig. 19; PI. 58, fig. 21. Stat. 53. Bay of Nangamessi, Sumba. Up to 36 M. Coralsand. 1 Spec. Stat. 154. 0°f.2 N., [30 25'-5 E. Near Waigeu-island. 83 M. Grey muddy sand, shells and Lithothamnion. 1 Spec. Stat. 164. i 4.2'. 5 S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 10 Spec. Stat. -04. Between islands ofWowoni and Buton, Northern entrance of Buton-strait. 75 — 94 M. Sand with dead shells. 2 Spec. Stat. 310. S° 30' S., ii9°7'.5 E. Flores Sea. 73 M. Sand with few pieces of dead coral. 6 Spec. I have united under this name those specimens with granular lirae below, it is the only species which, according to the descriptions of MöRCH and Tryon, possesses this character. In Rj 1 vi 's Conch. Ie. no mention has been made of this character. 4. Tenagodus (Agathirses) Bernhardi Mörch. MöRCH. Journ. de Conch. 1860, p. 368. REEVE. Conch. Ie. Vol. XX, Siliquaria, fig. 9. TRYON. Man. of Conch. Vol. VIII, p. 190, PI. 58, fig. 22. Stat. -]-j. Borneo-bank. 59 M. Fine grey coralsand. 1 Spec. Stat. 310. 8° 30' S., ii9°7'.5 E. Flores Sea. 73 M. Sand with few pieces of dead coral. 1 Spec. In the specimen from the last named Station the upper whorls are wanting. 5. Tenagodus /Agathirses) murieatus Born. Caes. Vindobon. p. 446, PI. 18, fig. 6. RUMPH. Amb. Rariteitkamer, p. 125, PI. 41, fig. II. REEVE. Conch. Ie. Vol. XX, Siliquaria, fig. 7 [anguina). TRYON. Man. of Conch. Vol. VIII, p. 190, PI. 58, fig. 23 — 25 {anguind). Stat. 104. i°42.5 S., I30°47ó E. Halmahera Sea. 32 M. Sand, small stones and shells. 2 Spec. Stat. 204. Between islands of Wowoni and Buton, Xorthern entrance of Buton-strait. 75 — 94 M. Sand with dead shells. ; Spec. <>. Tenagodus Pyxipoma) sp. Stat. 43. Pulu Saia .1. Postillon-islands. Up to 36 M. Coral. 1 Spec. TIn- specimen resembles the figure of 7'. encausticus Mörch in Reeve's Conch. Iconica but the description of the slit does not agree with the specimen. As it is broken, I ibstained myself bom describing it as new, moreover it seems to be very dangerous in iablt and most difficult group, to erect species on single specimens. It is the same with some other small specimens, from the same and other localities. :'■ 7. Tenagodtis (Pyxipoma) lactcus (Lam.) Mörch. LAMARCK. An. s. vert. Ed. II, Vol. V, p. 584? REEVE. Conch. Ie. Vol. XX, Siliquaria, fïg. 5. TRYON. Man. of Conch. Vol. VIII, p. 191, PI. 58, fig. 26. Stat. 273. Pulu Jedan, East coast of Aru-islands. 13 M. Sand and shells. 1 Spec. Stat. 310. 8° 30' S., ii9°7'.s E. Flores Sea. 73 M. Sand with few pieces of dead coral. 6 Spec. The specimens agree rather well with the figures and descriptions of Reeve and Tryon (1. c.) and also with the description of Mörch (Proc. Zool. Soc. Lond. 1860, p. 409), but neither with the figure of Chenu: Illustrations conchyliologiques, Siliquaria, PI. 2, fig. 1, quoted by Mökch nor with the description of that author (1. c. p. 2), who says a. o. : "coquille semitransparante, tres lisse, avec la fissure inarticulée", instead of an articulated slit, closed behind, open near the aperture, like Mörch, Reeve and Tryon have stated. Lamarck's description (1. c.) agrees with that of Chenu, as may be stated by a copy of his diagnose: "S. testa contorta, parvula, semipellucida, candida, laevissima, fissura inarticulata". Vermetus Adanson. This genus is still more perplexing than the former, as has been discussed by Tryon in his introduction of the genus (Man. of Conch. Vol. VIII, p. 163). I have only been successful in identifying two of the species and even not quite satisfactorely. 1. Vermetus renisectus (Carpenter) Mörch. MöRCH. Proc. Zool. Soc. Lond. 1861, p. 346. Tryon. Man. of Conch. Vol. VIII, p. 170, PI. 49, fig. 25, 26. Stat. 100. 6°u'N., I20°37'.5 E. Sulu Sea. 450 M. Dead coral. 3 Spec. (in a cluster). Stat. 172. Island Gisser. Reef. 1 Spec. Stat. 310. S°30'S., ii9°7'.5 E. Flores Sea. 73 M. Sand with few pieces of dead coral. 1 Spec. Stat. 315. East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 4 Spec. The specimens from the first-named Station are bleached, they will probably not have lived at that great depth, that from Stat. 172 is fixed on the hollow side of what seems to be one of the squamae of a large Tridacna. var. ? Stat. 315. East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 2 Spec. (cluster). Appears to be a dark-brown variety of V. renisectus, with somewhat faint lamellae. It is however impossible to me, to decide to which of the numerous varieties described by Mörch it may belong. 2. Vermetus sp. Stat. 299. Buka- or Cyrus-bay, South coast of Rotti-island. 34 M. Mud, coral and Lithothamnion. 2 Spec. The specimens are strongly ribbed, probably young. I cannot identify them. 77 / 'ermetus St.it. 25 1. - 2 E. Arafura Sea. 204 M. Hard coralsand. Many specimens. A large number of specimens fixed t<> stones and <>ther substances, lias a superficial mblance with / . -. I mi differs by having no interior lamellae. 4. / 'ermetus sp. South point of Kabacna-island. 22 M. Coarse sand. 1 Spec. :. Samau-island. Up to 36 M. Lithothamnion. 1 Spcc. St.it. , 1 ;. East 1 >t Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 1 Spcc. 1 can find no figure agreeing with this rather peculiar species, which lias a granular sculpture and seems to agglutinate small foreign bodies. No interna! laminae. 5. Vermetus maximus Sowerby. Si iwerby. Cat. Coll. Tankerv. App. N° 23. CHEMNITZ. 111. Conch. Vermetus, PI. 5, fig. 6 {gigas). TRYON Man. of Conch. Vol. VIII, p. 1S4, PI. 55, fig. 89, 90. Stat. 24S. Rumah Lusi, North point of Tiur-islands. Reef. 4 Spec. The tubes are for a «jood deal imbedded in coral. Fam. TURRITELLIDAI . Turritella Lamarck. 1 . Turritella (s. str.) ierebra Linné. LlNNÉ. Syst. Nat. Ed. XII, p. 1239. RUMPH. Amb. Rariteitkamer, p. 100, PI. 30, fig. M. KlENER. Coq. Viv. Vol. IX, Turritella, p. 4, PI. 3, fig. 4. REEVE. Conch. Ie. Vol. Y, Turritella, fig. 3. TRYON. Man. of Conch. Vol. VIII, p. 195, PI. 59, fig. 32, 33. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Turritella, p. 29, PI. 7, fig. 2. Stat. 1. 1400 M. trom "Zwaantjes-droogte", Madura-strait. 37 M. Grey mud with small binken shells. 3 Spec. 2. Turritella 's. s/r. leptomita Melvill & Sykes. Mi-.i.vii.i. & SYK1 Proc. Mal. Soc. Lond. Vol. II, p. 171, PI. 13, fig. 12, 12a. Stat. 133. Lirung, Salibabu-island. Up to }6 M. Mud and hard sand. 1 Spec. t. 231. Amboina. 40 M. Coralsand. 1 Spec. TIn: specimen from Stat. 133 is larger than the type, being 29 MUI. instead of 21,5 (that oina is young), the whorls, if wet, are faintly stained with brown, especiallv on the 78 iS7 keels, but if dry, the shell seems to be "pale ash-colour", in every other respect the specimens agree with the description. The type has been collected at the Andaman-isles. 3. Turritella (s. str.) cingulifera Sowerby. Sowerby. Cat. Coll. Tankerv. App. p. 14. KlENER. Coq. Viv. Vol. IX, Turritella, p. 34, PI. 8, fig. 3 (fragihs). REEVE. Conch. Ie. Vol. V, Turritella, fig. 64. TRYON. Man. of Conch. Vol. VIII, p. 198, PI. 59, fig. 38, 39, 41. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Turritella, p. 23, PI. 5, fig. 1 1 {cingulatd), p. 33, PI. 8, fig. 7, 8 [fragilis). Stat. 2. Madura-strait. 56 M. Grey mud with some radiolariae. 1 Spec. Stat. 7. Near reef of Batjulmati (Java). 15 M. Coral and stones. 6 Spec. Stat. 51. Madura-bay. 69 — 91 M. Fine grey sand, coarse sand with shells and stones. 6 Spec. Stat. 53. Bay of Nangamessi, Sumba. Up to 36 M. Coralsand. 8 Spec. Stat. 58. Seba, Savu. Up to 27 M. Sand. 1 Spec. Stat. 6i\ North coast of Adonara. Shore. 1 Spec. Stat. 64. Kambaragi-bay, Tanah-Djampeah. 32 M. Coral, coralsand. 1 Spec. Stat. jj. Borneo-bank. 59 M. Fine, grey coralsand. 1 Spec. Stat. 114. Kwandang-bay-entrance. 75 M. Hard sand, very fine. 2 Spec. Stat. 116. West of Kwandang-bay-entrance. 72 M. Fine sand with mud. 1 Spec. Stat. 123. North-bay, Biaru-island. 27 — 36 M. Stone and Lithothamnion-bottom. 1 Spec. Stat. 133. Lirung, Salibabu-island. Up to 36 M. Mud and hard sand. 2 Spec. Stat. 142. Laiwui, North coast of Obi Major. 23 M. Mud. 13 Spec. Stat. 204. Between islands Wowoni and Buton. 75 — 94 M. Sand with dead shells. 2 Spec. Stat. 231. Amboina 54 M. Coralsand. 2 Spec. Stat. 25S. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 2 Spec. Stat. 279. Rumah-Kuda-bay, Roma-island. 36 M. Mud and sand. 2 Spec. Stat. 285. South coast of Timor. 34 M. Limit between mud and coral. Lithothamnion. 3 Spec. Stat. 306. Near mount Lobetobi. 29 M. Lithothamnion-bottom. 3 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to $6 M. Sand, coral and mud. 62 Spec. This common and widely spread species is very variable in many respects, and so I can agree with the views of Tryon, who unites several species with it. I have however found no specimens corresponding to T. fttsco-cincta Petit. The colour varies from nearly white (probably bleached) to yellowish-brown and even uniformly rather dark brown, in which latter case the brown sutural band is scarcely perceptible. The whorls are more or less convex; in most cases, but not always, the upper whorls are flatter, the lower ones convex. The sculpture varies in distinctness of the keels, which are more or less granular on one, two or on all the lirae, and this only on the upper whorls or on the whole shell, with many intermediate stages; in conse- quence it is impossible, with so many specimens as I could compare, to separate them in different species, even the specimens from the same locality, are as variable as those from different parts of the Archipelago. 4. Turritella (Haustator) maculata Reeve. REEVE. Conch. Ie. Vol. V, Turritella, fig. 33. TRYON. Man. of Conch. Vol. VIII, p. 202, PI. 63, fig. 83. KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Turritella, p. 48. PI- IS. fig- 7- 79 [88 Stat. 4,~. Bay of Bima, near South i">t. 55 M. Mud with patches of fine coral and. 1 Spec. Stat. 164. 1 ' • Halmahera Sea. 32M. Sand, small stones and shells. [ 2 Spec. Stat. 311. Sapeh-bay, I ist of Sumbawa. Up to $6 M. Mud and sand 1 Spec. The specimens from Stat. 47 and 311 are young and bleached, in consequence their identification is not quite safe. The largest specimen from Stat. 164 is very characteristic, but the violet colour of the base is wanting; the brown lines of the base are less numerous or even nearly wanting in young specimens. It appears that if the figures of Kobelt, l.c. PI. 15, et, they belong to some other species. This species seems to be variable, at I have seen some specimens agreeing in man)- respects, but differing in other particulars-, 1 describe them as: var. ornata n. var. PI. XI, fig. 11. Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 12 Spec. Differing hom the type in being more painteel with yellowish-brown. The spotted band below the suture is broader-, base with six white lirae, with small brown spots; the interstices of the lirae are spirally striate, as in the type. Though at a first look differing considerably from the type, the sculpture is really the same, so I have not ventured to describe a new species on the slight differences recorded above. The majority of the specimens is still young. 5. Turritella (Haustator) sp. Stat. 299. Buka-bay, South coast of Rotti-island. 34 M. Mud, coral and Lithothamnion. 1 Spec. This specimen is still very nearly allied to var. ornata of the preceding species, especially by the colour-pattern of the base, but the whorls are strongly flammulate, and the articulated band below the suture, if present at all, is not conspicuous. 6. Turritella < Torcula) concava v. Martens. v. MARTENS. Beitr. z.ur Meeresf. der Insel Mauritius u. Seychellen. Moll. p. 283, PI. 20, fig. 19. Tryon. Man. of Conch. Vol. VIII, p. 200, PI. 64, fig. 6. Stat. 315. Sailus Besar, Paternoster-islands. l'p to 36 M. Coral and Lithothamnion. 1 Spec. < mly one young specimen has been collected, it exactly agrees with the description, however 1 can find no traces of the small reddish dots, which I have detected on a fossil specimen from Celebes (Samml. des Geol. Reichsmus. Leiden, Ser. I, Vol. VIII, i>. 190) which were also present, though much less conspicuous on a typical specimen, received for comparison, from the Zool. Museum in Berlin. Moreover a number of small specimens has heen collected, the)' are probably young, but could not be identified, as the upper whorls of adult specimens are nearly invariably wanting msequently cannot be used for comparison. 80 189 Fam. Melanidae. Melania Lamarck. i. Melania (Stenovielania) funiculus Quoy & Gaimard. Quov & Gaimard. Voy. Astrolabe. Zool. Vol. III, p. 158, PI. 56, fig. 43, 44. BROT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 136, PI. 17, fig. 1. Stat. 19. River near Labuan Tring, Lombok. 1 Spec. Stat. 131. Brook near Beo, Karakelang-islands. 2 Spec. Stat. 174. Brook near Waru, Ceram. 1 Spec. The specimen from Waru is small, with very indistinct folds and spiral striae in the constricted upper part of the whorls and at the base, those from Beo, have costulate upper whorls, but the lower ones are smooth, with only a few spiral striae. 2. Melania ( Stenome lania) hirris Brot. Brot. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 146, PI. 18, fig. 5. Stat. 131. Brook near Beo, Karakelang-islands. 1 Spec. Stat. 174. Brook near Waru, Ceram. 1 Spec. The specimens agree very satisfactorily with such formerly identified for me by Dr. Brot. 3. Melania (StenomelaniaJ eren?/ la la Deshayes. Deshayes. Lam. An. s. vert. Ed. II, Vol. VIII, p. 434. BROT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 114, PI. 14, fig. 9. V. MARTENS. Süss u. Brackw. Moll. Ind. Arch. p. 45. Stat. 19. River near Labuan Tring, Lombok. 7 Spec. The specimens belong to one of the smaller varieties, as far as I know the species has not yet been recorded from Lombok. 4. Melania (Stenomelania) uniformis Quoy & Gaimard. Quov & Gaimard. Voy. Astrolabe. Zool. Vol. III, p. 154, PI. 56, fig. 30—35. BROT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 124, PI. 15, fig. 3, 3a; PI. 16, fig. I. V. Martens. Süss- u. Brackw. Moll. Ind. Arch. p. 46. Stat. 19. River near Labuan Tring, Lombok. 7 Spec. v. Martens (1. c. p. 47) says to have seen specimens from Lombok in the Cumingian collection. 5. Melania (Stenomelania) arctecava Mousson. MOUSSON. Journ. de Conch. 1857, P- ^i- BROT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 165, PI. 20, fig. 1. Si SIBOGA-EXPED1TIE XI.IX1 b. 25 i go Stat i;i. B Karakelang-islands. (8 S] Stat 174. Brook near Waru, Ceram. 1 Spec. ^greeing with specimens named by Brot. melania) punctata Lamarck. Lamarck. Au. s. vert Ed. II, Vol. VIII, p. 430. Martini-Chemn. Conch. Cab. Ed. II. Vol. I, Melania, p. [68, PI. 20, fig. 4. . \\\. Brook near Beo, Karakelang-islands. 2 Spec. Stat. 133. Brook near Lirung, Salibabu-island. 7 Spec. The specimens agree with Brot's figures and with specimens named by that authority. ; i< - .1/. albescens Lea to punctata Lam. and seems to be inclined to unite also .)/. laevigata (l.c. p. 172), v. Martens (Süss- u. Brackw. Moll. p. 49) is in doubt about this question, but suggests that my M. punctata Lam. from Kupang, Timor, belongs to laevigata. Brot has veritïed and approved my identification of the latter specimens. How this may be, the specimens now under consideration, belong no doubt to the true Af. punctata Lam. 7. Melania (Stenomelania) sobria Lea. I i \. 1'roc. Zool. Soc. Lond. 1850, p. 1S1. BROT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 178, PI. 21, fig. 5. Stat. 174. Brook near Waru, Ceram. 6 Spec. Though small, some specimens seem in 1><- adult; one of them has a slight angle below the suture of last whorl, thus forming a passage to .1/. cochlidium Lea, but it is not so strong as in that species. 8. Melania (Melanoides) tuberculata Muller. Ml 1.1.1 1;. Ilist. Vermium. Vol. II, p. 191. 1. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 247, PI. 26, fig. 11. v. MARTENS. Suss. u. Brackw. Moll. Iml. Arch. p. 56. Stat. 174. Brook mar Waru, Ceram. i Spec. This specimen belongs to a variety with only a few spiral striae at the lower part of the median whorls, somewhat like var. seminuda v. Martens (l.c. p. $S. PI. I\', fïg. 1 . hut that variety according to the figure "f \. Martens and specimens from Adonara in my collection is strongly flamed. By its sculpture it resembles specimens from Supajang (Sumatra). Melania Melanoides) malayana [ssel. 1. Ann. del Mus. Civ. di Stor. Nat. di Genova. Vol. VI, 1874, p. OT. Martini-Chemn. Conch. Cab. Ed. II. Vol. I. Melania, p. 253, PI. 26, fig. 5. I2. Mahakkam river, Batu Pangal, Borneo. 1 Spec. 82 I9I Though Issel has described this form as a variety of M. tuberculata Müll.. I think Brot may be right in separating it, on account of the very flat whorls. 10. Melania (Melanoides) salibabucnsis n. sp. PI. XII, fig. 8. Stat. 133. Lake Telaga Bindu near Lirung, Salibabu-island. 24 Spec. Shell pyramidal, dark olive, wlth faint purple-brown flames, especially on the upper whorls, often completely wanting on the lower ones; strongly decollated, remaining whorls 3 to 4, slightly convex near the median part, constricted below the sutures, which are very conspicuous. Sculpture consisting of numerous growth-striae, of which several, at irregular distances are stronger and nearly riblike, these striae are crossed by impressed spiral striae, which occupy nearly the whole surface of the upper whorls (in younger specimens), leave the upper part of the median whorls free and are restricted on the median part of last whorl, where the basal part is smooth again. Aperture ovate with a rather sharp angle above, outer margin protracted below, columellar margin with a strong layer of enamel, which is dark grey in its upper part, white below, with a yellow tinge near the base and a black rim all around; base of aperture broadly sinuous. Alt. (of large specimen) 22, lat. 9; apert. alt. 9 Mill. This species is allied to M. turriculus Lea and crepidinata Reeve, but the whorls are much less convex tlian in the latter species, they better agree in this respect with M. turriculus but in that species the base is striated, the aperture not so strongly sinuous. This latter character may serve to distinguish the new species from its allies. 1 1 . Melania (Plotia) scabra Muller. Muller. Hist. Vermium. Vol. II, p. 136. Brot. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 266, PI. 27, fig. 14, 15. V. MARTENS. Süss- u. Brackw. Moll. Ind. Arch. p. 62. Stat. ^1. River near Pidjot, Lombok. 8 Spec. Stat. 53. River near Waingapu, Sumba. 6 Spec. Stat. 115. River near Kwandang, North-Celebes. 4 Spec. 12. Melania (Plotia) aeanthica Lea. Lea. Proc. Zool. Soc. Lond. 1850, p. 194. BROT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 278, PI. 28, fig. 10. Stat. 142. River near Laiwui, Obi Major. 28 Spec. Small but very characteristic by the long spines of the majority of the specimens. 13. Melania (Plotia) Savinieri Brot. Brot. Recueil Zool. Suisse. Vol. IV, 1S86, p. 93, PI. 5, fig. 9. MORLET. Journ. de Conch. 1884, p. 330, PI. 7, fig. 2. Stat. 82. Mahakkam river, Batu Pangal, Borneo. Numerous specimens. S3 I g 2 I hc species has only l i orded trom Java. I cannot distinguish the Bornean specimens from tin »-* n » d from Java, formerly named by Brot. i 4. Melam Swainson. Swain it. Journ. Science. 1S24, p. 13. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 297, PI. 30, tig. 5,6; PI. 31, fig. 1. \. MARTI N'S. Süss- u. Hrackw. Moll. Ind. Arch. p. 66. St.it. [31. Brook near Hen. Karakelang-islands. 9 Spec. This is as l'ar as I knuw the first record in litterature for the species, from this lucality. 15. Melania (Tiaropsis) rudis Lea. 1 r.\. 1'roc. Zool. Soc. Lond. 1850, p. 186. BROT. Martini-Chemn. Conch. Cab. Ed. II. Vol. I, Melania, p. 305, PI. 32, fig. 1. Stat. 179. River in Kawa-bay, West coast of Ceram. 1 Spec. The specimen has the shape of the type, represented by fig. 1 of Brot, but has three bruwn bands of which one below the suture, one below the periphery and the third near the base. 16. Melania (Tarcbia) cclcbensis Quoy & Gaimard. QUOY & Gaimard. Voy. Astrolabe. Zool. Vol. III, p. 152, PI. 56, fig. 26 — 29. BROT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 317, PI. 32, fig. 15. v. MaRTENS. Süss- u. Brackw. Moll. Ind. Arch. p. 69. Stat. 19. River near Labuan Tring, Lombok. 14 Spec. This species has not yet been recorded from Lombok, the specimens vary in the develop- ment of the granules. 17. Melania (Tareèia) granifera Lamarck. LAMARCK. An. s. vert. Ed. II, Vol. VIII, p. 433. BROT. Martini-Chemn. Conch. Cab. Ld. II, Vol. I, Melania, p. 321, PI. n, fig. 13. v. MARTENS. Süss- u. Hrackw. Moll. Ind. Arch. p. 71. St.it. 33. River near bay of Pidjot, Lombok. 26 Spec. I think this species is new for Lombok. iS. Melania (Tarebia) lateritia Lea. Lea. Proc. Zool. Soc. Lond. [850, p. 1 BROT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I. Melania, p. 319, PI. 33, fig. 1. 53. River near Waingapu, Sumba. 6 Spec. A ufficiently witli specimens from the islaml of Sumba formerly named by Brot. 193 19- Melania (Tarebia) mauiensis Lea. LEA. Proc. Ac. Nat. Sc. Philad. 1856. Brot. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 322, PI. 33, fig. 7, 8 (9?). Stat. 53. River near Waingapu, Sumba. 24 Spec. Brot (1. c. p. 324) says that he is unable to distinguish M. crenifera Lea (Brot 1. c. fig. 9), from M, mauiensis \ in accordance therewith he may have named specimens from the same island. The specimens now under consideration, agree fairly well with those I had formerly sent to that authority for comparison. v. Martens (Süss- u. Brackw. Moll. p. 305) makes only mention of M. crenifera, as inhabiting Java. Faunus Montfort. 1 . Faunus ater Linné. Linné. Syst. Nat. Ed. X, p. 746, N° 441. RUMPH. Amb. Rariteitkamer, p. 101, PI. 30, fig. R. Brot. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Melania, p. 410, PI. 44, fig. 3. V. Martens. Suss- u. Brackw. Moll. Ind. Arch. p. 191. Stat. 179. River in Kawa-bay, West coast of Ceram. 41 Spec. The largest specimens are still a trifle larger than those (75 Mill.) recorded by Brot ; one of them has the polished surface on one side, mentioned by v. Martens (1. c. p. 192), the black incrustation is wanting on the whole length, and on more than a third of the length, the epidermis has not only disappeared, but also part of the shelly matter has been ground away and becomes more or less transparent on that side. Fam. Littorinidae. Littorina Ferussac. 1. Littorina (Littorinopsis) scabra Linné. Linné. Syst. Nat. Ed. X, p. 770, Nu 584. RUMPH. Amb. Rariteitkamer, p. 98, PI. 29, fig. Y. REEVE. Conch. Ie. Vol. X, Littorina, fig. 21. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Littorina, p. 37, PI. 4, fig. 7 — io, 12, 16 — 18. Tryon. Man. of Conch. Vol. IX, p. 243, PI. 42, fig. 18—20. Stat. i~] . Sailus Ketjil, Paternoster-islands. Up to iS and 27 M. Coral and coralsand. 21 Spec. Stat- 47. Bay of Bima, near South fort. 13 — 31 M. Mud with patches of fine coralsand. 1 Spec. Stat. 50. Bay of Badjo, West coast of Flores. Up to 40 M. Mud, sand and shells. 1 Spec. Stat. 6r. North coast of Adonara. Shore. 1 Spec. Stat. 86. Dongala, Palos-bay, Celebes. Reef and 36 M. 10 Spec. Stat. 165. North-east side of Daram-island, East coast of Misool. Reef. 1 Spec. Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 1 Spec. Very variable in colour, but the only specimen that seems to deserve a varietal name is : S5 194 var. lutea Philippi. PHIUPPI. .\bl). u. Beschr. neuer mier wenig gekanntei Conch. Vol. III, p. 221, I.ittorina, PI. 5. fig. ... St.u. 71. Makassai .nul surroundings. lp to 32 M. Mud, sand with mud. 1 Spec. Philippi has quoted in the text fig. <> for this variety, but it evidently is fig. 11 that s with th<- description, fig. i*> is liis variety suturalis, quoted as fig. 7. The figs 6 — 9 of that author represent his /.. intermedia, considered by many authors to lx- merely a varietj . it is often not an easj tusk to distinguish it from younger specimens of L. scabra. It seems that Tryon (1. c. p. 244, PI. 42. fig. 21 — 24) has mixed the two species, for his character "periphery angulated or carinated", is in contradiction with 1'im ippi's original description, the figures 22 and 24 are probably young specimens of scabra. 2. Littorina (Littorinopsis) undulata Gray. \\. Zool. Beechey's Voy. p. 140. REEVE. Conch. 1c. Vol. X, Littorina, fig. 67. WEINKAUFF. Martini-Chemn. Conch. Cab. lid. II, Vol. II, Littorina, p. 73, PI. 9, fig. 15, 16. TRYON. Man. of Conch. Vol. IX, p. 244, Tl. 43, fig. 39, 40. Stat. 129. Kawio- and Kamboling-islands, Karkaralong-group. Sand. 2 Spec. Fam. Rissoiidai . Rissoina d'Orbigny. 1. Rissoina micans A. Adams. Adams. Proc. Zool. Soc. Lond. 185 1, p. 265. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Rissoina, p. 17, PI. 7, fig. 4. TRYON. Man. of Conch. Vol. IX, p. 371, PI. 55, fig. 28. Stat. 306. 8°27'S., I22°54'.5E. Savu Sca. 247 M. Sandy mud. 1 Spec. The only specimen is a bleached shell. 2. Rissoina (Rissolina) plicata A. Adams. Adams Proc. Zool. Soc. Lond. 1S51, p. 264. WEINKAUFF. Martini-Chemn. Conch. Cab. lid. II, Vol. I, Rissoina, p. 23, PI. 8, fig. 5, 6. Tk\"\. Man. of Conch. Vol. IX, p. 375, PI. 56, fig. 58 — 60. Stat. 315. East ofSailus Besar, Paternoster-islands. Upto 36 M. Coral and Lithothamnion. 1 Spec. This specimen is a dead shell. 3. Rissoina (Rissolina) s]>. Stat. 240. Panda. 9 — 45 M. Hlack sand, coral. 1 Spec. shell is too much worn for Identification. 86 195 4. Rissoina (Phosinella) erythraea Philippi. Philippi. Zeitschr. f. Malak. 1851, p. 93. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Rissoina, p. 39, PI. 11, fig. 6; p. 64, PI. 15, fig. 16; PI. 156% fig. 2 {Segueiiziana). Tryon. Man. of Conch. Vol. IX, p. 382, PI. 37, fig. 97—2; PI. 58, fig. 3, 4. Stat. 231. Amboina. Reef. 3 Spec. The specimens are rather elongate. 5. Rissoina (Mörchiella) spirata Sowerby. SOWERBY. Gen. of Shells. N° 40, PI. 208, fig 2. Reeve. Conch. Ie. Vol. XX, Rissoa, fig. 17. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Rissoina, p. 42, PI. 12, fig. 4. TRYON. Man. of Conch. Vol. IX, p. 38S, PI. 58, fig. 29. Stat. 66. Bank between islands of Bahuluwang and Tambohmgan. 8 — 10 M. Dead coral, Halimeda and Lithothamnion. 1 Spec. This specimen is sufficiently typical. mut. de f or mis Sowerby. Reeve. Conch. Ie. Vol. XX, Rissoa, fig. 63. Tryon. Man. of Conch. Vol. IX, p. 388, PI. 59, fig. 35. Stat. 125. Sawan, Siau-island. 27 M. Stone and some Lithothamnion. 1 Spec. The only specimen shows more affinity to the next variety than to the type, being more slender and delicate. var. Montrouzieri Souverbie. SOUVERBIE. Journ. de Conch. 1S62, p. 237, PI. 9, fig. 5. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Rissoina, p. 57, PI. 14, fig. 15. Stat. 19. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- sand. 1 Spec. Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 142. Laivvui, North coast of Obi major. 23 M. Mud. 1 Spec. The specimens sumciently agree with the original figure; it is often difficult with so variable a species, to identify every specimen and to bring it to some described form. It is however still more difficult to keep them separate as good species, unless one destroys intermediate specimens. 6. Rissoina (Zebina) tridentata Michaud. MlCHAUD. Descript. Genre Rissoa, p. 6, fig. 5, 6. Schwarz. v. Mohrenstern. Rissoina, p. 107, PI. 9, fig. 74. Stat. 78. Lumu-Lumu-shoal. Borneo-bank. Reef. 1 Spec. The specimen is not in very good condition, so I had, like some of my predecessors, first taken it for an Eulinia. 37 I .,'1 Rissoia Fréminville. i . Rissoia sp. Stat. 285. Soutl I rimor. $4 M. On the limit betwcen mud and coral. I.ithothamnion. 1 S Having much resemblance with the description and figure of A'. venusta Garret, by its shape and sculptu isisting of strong, compressed, spiral ridges, of which 2 on the upper whorls, 5 on the body whorl and conspicuous radiating riblets; but the shell is smaller, there .1 few secundary spirals, especially on the body whorl and the lip is not varicose; as it is however very thin and fragile, the specimen may l>e juvenile. l'nder these circumstances, I am not able to identify this single specimen, nor to describe it as new with a sufficiënt degree rtainty. 2. Rissoia kwandangensis n. sp. PI. XII, hg. 9. Stat. 115. Kast side of Pajunga-island, Kwandang-bay, North Celebes. Reef. 1 Spec. Shell small, conic-oval, solid, opaque: whorls about 6, slightly convex, separated by a deep suture, colour whitish, with spiral rows of purple-brown spots. Nuclear whorls smooth, sculpture of subsequent whorls consisting of rather thin, straight ribs, about iS on the last whorl, crossed by spiral ridges, of which there are 6 on the penultimate whorl and 11 on the last one, the sixth running just in a channel above the suture-, this sculpture renders the shell cancellated; moreover fine growth-striae make their appearance in the squares remaining in the interstices of this sculpture. Of the brown spots the upper spiral row runs a little below the suture, on the alternating ribs, and five fainter ones, on the basal part of last whorl. Aperture rounded oval, slightly angular above, outer margin regularly curved, with a strong varix externally; columellar margin reflected over the pillar and the base. Yarix adorned with two larger brown spots, one at the upper and one at the basal part. Alt. 21/,, lat. i1/,; apert. alt. '/,, lat. '/. Mill. This small species is allied to R. versoverana Melv. (Mem. Manch. Philos. Soc, VII, 1893, p. 6 1 but that species is much more ventricose. Fam. Hydrobiidae. Bithynia Leach. 1. Bithynia truncata Eydoux «S: Souleyet. Eydoux & Souleyet. Vby. de la Bonite. Zool. Vol. II, p. 348, PI. 31, tig. 22 — 24. v. MARTENS. Süss- u. Brackw. Moll. Ind. Arch. p. 25, PI. 9, fig. 11, 11/». Stat. 4. Rivulet near Djangkar (Java). 2 Spec. .SS 197 Fam. Viviparidae. Vivipara Lamarck. i. Vivipara javanica v. d. Busch. V. D. BUSCH in Philippi: Abbild. u. Beschr. neuer Conch. Vol. I, p. 114, Paludina, PI. 1, fig. 11, 12. Reeve. Conch. Ie. Vol. XIV, Paludina, fig. 52. V. MARTENS. Süss- u. Brackvv. Moll. Ind. Arch. p. 21. Stat. 231. Brook at Amboina. 1 Spec. v. Martens in his list, giving the geographical distribution (1. c. p. 302) records V. javanica with doubt from the Moluccos; by this specimen, which though young is in good condition, the proof of its living there, has been delivered. 2. Vivipara costata Quoy & Gaimard. Qüoy & Gaimard. Voy. Astrol. Zool. Vol. III, p. 470, PI. 58, fig. 1 — 5. REEVE. Conch. Ie. Vol. XIV, Paludina, fig. 6. V. Martens. Süss- u. Brackw. Moll. Ind. Arch. p. 20. River near Tondano, Celebes. 8 Spec. Rather small, but quite characteristic. Fam. Ampullariidae. Ampullaria Lamarck. 1. Anipullaria ampullacca Linné. LixnÉ. Syst. Nat. Ed. X, p. 771, N° 592. RUMPH. Amb. Rariteitkamer, p. 92, PI. 27, fig. Q. Reeve. Conch. Ie. Vol. X, Ampullaria, fig. 48. v. Martens. Süss- u. Brackw. Moll. Ind. Arch. p. 17. Stat. 47. River at Bima, Sumbawa. 1 Spec. The specimen is small, with rather high spire, the shape of the aperture and the oper- culum are sufficiënt to distinguish it from the small A. scutata\ the right margin is thin, so it is a young specimen. This is as far as I am aware the first record for Sumbawa. Fam. Cyclophoridae. Leptopoma L. Pfeiffer. 1. Leptopoma diplochihis Sykes. Sykes. Journ. of Malacology. Vol. X, 1903, p. 66, PI. 6, fig. 16 — 18. Stat. 155. Piapis-bay, N. W. coast of Waigeu-island. Shore. 2 Spec. 89 SIBOOA-EXPEDITIE XLIX'Ó. 26 I . ,s e specimens are smaller than those described by Sykes, who calls the colour pale lilac; this is scarcely applicable to the Siboga-specimens, but the strongly projected inner lip which is sii characteristic for this species is distinctly present in one specimen, where its length reaches nearlj Mill., in the other one, which is probably younger, this projection is still very slight, but in nearly every other respect it agrees with the more typical one, so I don't to unite them. Cyclotus Guilding. i. Cyclotus kangeanus (v. Mlldff.) n. sp. PI. XII, tig. 10. Stat. [6. Kangeang. 3 Spec. Shell depressedly turbinate, openly umbilicated, rather smooth, but with conspicuous growth-striae on the upper whorls, fading on the last one, which is irregularly pitted, moreover a lar^e part of the shell, if fresh, is covered by very fine spiral striae and an irregular, impressed line. which is at some places doublé, runs at some distance from the deep suture; whorls about 4'/.<, slightly depressed above, especially near the suture, else convexly rounded ; colour from yellowish- to dark redbrown, more or less variegated with darker zigzag- markings and a yellowish band at the periphery, often accompanied by a darker zone below. Aperture nearly circular, a little oblique, with a slight angle above, margin white, doublé, the outer margin rather strongly expanded and slightly reflected, forming a triangular lobe at the body-whorl; this triangle is slightly compressed, with an impressed line on the inner surface. Operculum thick. calrareous, many-whorled. Diam. 19, alt. 12; apert. alt. et lat. incl. perist. 9 Mill. Diam. i9r>/n alt. 147,; apert. alt. et lat. incl. perist. 9'/^ Mill. This species is nearly allied to C. floresianus v. Mart. (Zool. Ergebh. Reise in Niederl. Ost-Indien. p. 211, PI. 12, fig. 1 — 3), but it is smaller, has a darker colour, the umbilicus is narrower and the peristome is much more expanded and even reflected. It has been named by v. Moixendorff, but as far as I know, he has never described it. I possess specimens received from Fruhstorfer in 1903, of these one is of much lighter colour. The largest Siboga-specimen is ,i dead shell, the two other ones have been taken aliw. 2. Cyclotus succinctus v. Martens. v. Martens. Monatsber. Vcad. Berlin, 1864, p. 117. üstasiatiscliL- Landschn. p. 122, PI. 2, fig. 6. :. 296. Dry Riverbed near Noimini, Timor. 1 Spec. The only specimen of this land-mollusk is a dead shell. it agrees with var. major of by its size and feeble keel. 90 199 Fam. Hipponycidae. Amalthea Schumacher. i. Amalthea conica Schumacher. Schumacher. Essai, p. 181, PI. 21, fig. 4. Tryon. Man. of Conch. Vol. VIII, p. 136, PI. 41, fig. 9—15 {australis). Stat. 9. 7°44'.6S., U4°42'.6E. Madura Sea. 353 M. Soft, fine, grey mud. 2 Spec. Stat. 60. Haingsisï, Samau-island. Reef. 1 Spec. Stat. 78. Lumu-Lumu-shoal, Borneo-bank. Shore. 3 Spec. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, sand and coral. 1 Spec. Stat. 125. Savvan, Siau-island. Reef. 7 Spec. Stat. 142. Laiwui, North coast of Obi Major. Reef. 4 Spec. Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 1 Spec. Stat. 213. Saleyer. Reef. 2 Spec. Stat. 225. South of Lucipara-island. Reef. 7 Spec. The specimens as usually, are very different in shape and colour, they are more or less elevated and entirely white, more or less radiated with brown, or nearly entirely brown. The specimens from a great depth (Stat. 9) are fixed on a much worn shell of a Gastropod, perhaps a Tritonidea, from Stat. 78, on Strombus urceits Lin., from Stat. 225 on Terebra crenulata Lin., Stromö?is urceus Lin., from Saleyer on large spines of an Echinoderm, probably Acrocladia, from Haingsisi on Cassis vibcx Lin. So it is conspicuous that they have no preference for any group of shells, to fix themselves upon. I can detect no basal shell-plate, but especially the older specimens have made conspicuous scars in the shells on which they live. One rather adult specimen from Saleyer, has in accordance with its abode on a spine, a strongly compressed shape. Some adult specimens have young ones on their backs. 2. Amalthea Danicli Crosse. CROSSE. Revue Zool. 1S58, p. 161, PI. 3, fig. 2 {Capulus). Journ. de Conch. 1862, p. 19 {Hipponyx). Tryon. Man. of Conch. Vol. VIII, p. 136, PI. 41, fig. 21, 22. Stat. 51. Madura-bay. 69 — 91 M. Fine grey sand, coarse sand with shells and stones. 1 Spec. Stat. 260. Near Nuhu Jaan, Kei-islands. 90 M. Sand, coral and shells. 1 Spec. The specimen from Stat. 5 1 , which is the most characteristic, was afhxed on Gyrineum cusfiidatum Rve, but was easily loosened, leaving a scar. This species has been recorded from New Caledonia, by Crosse, Tryon (1. c.) records no other localities, so it may be new for the archipelago. 3. Amalthea (Malhivium) lissa Smith. SMITH. Ann. and Mag. Nat. Hist. Ser. 6, Vol. XIV, 1894, p. 166, PI. 4, fig. 4—6 {Capulus). Ann. and Mag. Nat. Hist. Ser. 7, Vol. XIV, 1904, p. I. V. Martens. Beschalte Gastrop. d. deutschen Tiefsee-Exp. 1898—99, p. 117. 91 200 TH1ELE. Beschalte Gastrop. d. deutschen Tiefsee-Exp. [898 99, p. [65, PI. 8, fig. 46. Mi 1 vin. Proc. Mal. S I nd. VII, 1906, p. Bi. Smith. Proc. Mal. Soc. Lond. VII. 1906, p. 122. St.u. 12. ;■ 15 S. [15 i;.'.K. Madura Sea. 289 M. Mud. and broken shells. Many specimens. Stal 5 N.. ii" i' E. Sulu Sea. 5JJ M. Stony bottom. 19 Spec. St.u. 1 \.. 121 19 E. Sulu Sea. -.75 M. Coralbottom. 1 Spec. 1 1 S.. 1 - 1 . Molucca-Pi M. Mud, stones and coral. 16 Spec. 5 S.. [30 47..; E. Halmahera Sea. 32 M. Sand, small stones and shells. 1 Spec. Stat. ,. Between Wowoni and Hut. ui. 75—94 M. Sand with dead shells. 2 Spec. The specimens from Stat. 12 are so numerous and often form small colonies, that it is rly impossible to count them; the majority from Stat. 12 lias been dredged alive on Xenophora pallidula Rve, on a dead Murex belonging to or allied to M. ternispina Lam.. other specimens from the same locality live on stones or fragments of very diversified shells; those from Stat. 95 and 105 are dead shells, those from Stat. 139 are affixed on a dead Xenophora and a young dead Rostellaria. The specimen from Stat. 164. which should have lived at a depth of 32 M. is very flat and broad, but the sculpture, consisting of more or less irregular growth- striae, and shape of spire agree with typical specimens. Mr. Smith to whom 1 had sent this doubtful specimen, pronounced it to be: "probably a dilated variety of A. ltssa", the specimens from Stat. 204, which are dead shells, are from not more than 94 M. Dr. Tim 1 1 (1. c.) was the first to state that the species, according to its anatomy belongs to Hipponyx = Atnalthea. Afterwards Mei.vill (1. c.) came to the same conclusion on other grounds, and Smith (Proc. Mal. Soc. Lond. VII, p. 122) states in a note that Prof. Gwatkin found the radula nearest that of Atnalthea. M11 viu. (1. c.) has erected the subgenus Malluvium for this smooth species of Atnalthea. The Siboga-specimens have no brown colour in the interior of the shells, as far as I could see in loosened ones. Mitrularia Schumacher. 1. Mitrularia equestris Linné. LlNNÉ. Syst. Xat. Ed. XII, p. 1257. Ki.evi:. Conch. Ie. Vol. XI. Calyptraea, fig. 1. TRYON. Man. of Conch. Vol. VIII, p. 137, PI. 41, fig. 25, 26. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 1 Spec. var. tortilis Reeve. R] EVE. Conch. Ie. Vol. XI, Calyptraea, fig. 2 />. TRYON. Man. of Conch. Vol. VIII. p. 13S, PI. 42, fig. 53. Stat. 225. South Lucipara-island. Reef. 1 Spec. var. cicatricosa Reeve. Reeve. Conch. Ie. Vol. XI. Calyptraea, fig. ja. TRYON. Man. of (Onch. Vol. VIII, p. 13S. l'l. 42, fig. Stat. 59. Western entrance of Samau-strait. 390 M. Coarse coralsand with small stones. 1 Spec. Stat. 114. Kwandang-bay-entrance, North Celebes. 75 M. Hard sand, very fine. 1 Spec. \. Nalahia-bay, Nusa-Laut-island. Reet'. 2 Spec. 92 201 var. liipponyciformis Reeve. Reeve. Conch. Ie. Vol. XI, Calyptraea, fig. 26. TRYON. Man of Conch. Vol. VIII, p. 238, PI. 24, fig. 40, 41. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 1 Spec. A most variable species. I have identified the specimens as well as possible, with the aid of the figures of Reeve's monograph. Only the specimen from Stat. 225 contains the soft parts, the other ones are dead shells, which is especially of interest for the specimen from Stat. 59, which probably will not have lived at that great depth. 2. Mitrularia costifera n. sp. PI. XII, fig. 11. Stat. 116. West of Kwandang-bay-entrance. 72 M. Fine sand with mud. 1 Spec. Shell small, suborbicular, thin, depressedly convex, white; nucleus subcentral, but placed a little at the posterior part, smooth, spiral; a zone around the nucleus is sculptured by fine radiating striae, the remaining part of the surface is sculptured by strong radiating ribs, about 23 in number, separated by rather deep grooves or interstices, about as broad as the ribs; the ribs project at the margin and make it conspicuously denticulate, they are slightly nodulous and waved and are covered, as well as the interstices, with radiating striae. Interior of shell smooth, slightly grooved by the ribs. Cup-shaped lamina much broken. Long. 9, lat. 91/,, alt. 31/, Mill. I am not at all proud of this new species, as it is slightly defective, part of the outer shell and of the internal lamina wanting. Moreover I suppose it may be still rather young. As I failed to identify it with any of the known species, I asked the opinion of Mr. E. A. Smith, who has at his disposal the types of the numerous species described by Reeve ; the result was that Mr. Smith declared it to be new. The most characteristic feature is the presence of comparatively strong ribs, conspicuously surpassing the margin of the shell. The dorsal view calls in mind some flat specimens of Amalthea couica Schuin. Fam. Capulidae. Crepidula Lamarck. 1. Crepidula (Siphopatella) Walchi Herrmannsen. Herrmannsen in Reeve. Conch. Ie. Vol. I, Crepidula, fig. 17. Tryon. Man. of Conch. Vol. VIII, p. 130, PI. 38, fig. 56—58 [Walshii). Stat. 273. Pulu Jedan, East coast of Aru-islands. 13 M. Sand and shells. 1 Spec. This is as far as I am aware the first record from the East Indian Archipelago. Tryon's enumerated localities are Ceylon, Singapore, China Sea, Japan. I can see no differences from my Japanese specimens. 93 Capulus Montfort. i. Capulus fragilis Smith. SM1TH. Ann. and Mag. Nat. 1 list. Scr. 7, Vol. XIV, 1904, ]>. 1. Stat. 85. v 36'. 5 S., 110 Z9/.5 E. Makassar Strait. 724 M. Fine, grey mud. 1 Spec. Stat. 8 S., 1I9°39'.8E. .Mak.i---.ir Strait. 655 M. Fine, grey mud. 1 Spec. Both specimens seem to be young, the largest one having only a length of nearly S Mill.. those described by Smith of [3 MUL, but the description agrees in every particular, ially the presence of an interna! septum, as in the genus Septaria, is very characteristi< . The "Investiga tor "-specimens have been dredged in the Laccadive Sea at 105 fathoms and in the bay of Bengal, at 410 fathoms. Thyca H. & A. Adams. 1. Thyca crystallina GouM. 'r 'LID. Proc. Boston Soc. Nat. Hist. II. 1S46, p. 161 (Capulus). TRYON. Man. of Conch. Vol. VIII, p. 136, PI. 41, fig. 18, 19 (Hipponyx). KÜKENTHAL. Abh. Senckcnb. Gesellsch. Vol. 24, 1898, p. 9, PI. 2, fig. 10 — 12. Stat. 60. Haingsisi, Samau-island. Reef. 13 Spec, on Linckia. Stat. 231. Amboina. Reef. 15 Spec. on Linckia. Stat. 234. Nalahia, Nusa-Laut-island. Reef. 4 Spec, on Linckia. Stat. 279. Ruma-Kuda-bay, Roma-island. Reef. 3 Spec, on Linckia. Stat. 301. Pepela-bay, East coast of Rotti-island. Reef. 1 Spec. lor particulars on this species, see the Report on the parasitic Prosobranchia of the Siboga Expedition, Part XLIX: of this work. Fam. Xenophoridae. Xenophora Fischer de Waldheim. 1. Xaioplioi-a (s. str.J solarioides Reeve. REEVE. Conch. Ie Vol. I, Phorus, fig. S. KlliNER. Coq. Viv. Vol. X, p. 447, PI. 44, fig. 3. TRYON. Man. of Conch. Vol. VIII, p. 159, PI. 44, fig. -j-j. Stat. 64. Kambaragi-bay, Tanah-Djampeah. 32 M. Coral, coralsand. 1 Spec. Stat. 71. Makassar and surroundings. 27 — 30 M. Mud, sand with mud, coral. 4 Spec. Stat. -j-j. Borneo-bank. 59 M. Fine, grey coralsand. 1 Spec. Stat. 274. 50 28.2 S., 1340 53-9 IL N'ear Aru-islands. 57 M. Sand and shells, stones. 2 Spec. Stat. 313. Kast of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 13 Spec. This species has only been recorded from the Philippines. A very young specimen from Stat. 313, has a nearly smooth base, under the lens a row of beads borders the umbilicus. a few very faint spirals surround it and still fainter growth-striae, elegantly curved, make their nee, the upper surface is quite covered with small stones and large foraminifera, only whorls remain uncovered. 94 203 2. Xenophora corrugata Reeve. Reeve. Proc. Zool. Soc. Lond. 1842, p. 163. Conch. Ie. Vol. I, Phorus, fig. 6. KlENER. Coq. Viv. Vol. X, p. 441, PI. 8. Tryon. Man. of Conch. Vol. VIII, p. 159, PI. 45, fig. 81, 82. Stat. 164. i°42'.5 S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 2 Spec. Stat. 204. Between islands of Wowoni and Buton, northern entrance of Buton-strait. 75 — 94 M. Sand with dead shells. 2 Spec. The specimens are rather small, the largest, from Stat. 204, having only a largest diameter of about 35 Mill. without the agglutinated shells and stones, the other one is very young but has already the characteristic sculpture, consisting of rather coarse wrinkles; in the young specimen the umbilicus is still open, in the largest one it is a small perforation. 3. Xenophora caperata Philippi. PHILIPPI. Zeitschr. für Malak. 1851. KlENER. Coq. Viv. Vol. X, p. 439, PI. 79, fig. 1. Tryon. Man. of Conch. Vol. VIII, p. 159, PI. 44, fig. 78, 79; PI. 45, fig. 83. Stat. 204. Between islands of Wowoni and Buton, northern entrance of Buton-strait. 75 — 94 M. Sand with dead shells. 6 Spec. Stat. 2S9. 9°o'.3S., I2Ó°24'.5 E. Timor Sea. 112 M. Mud, sand and shells. 1 Spec. This species is very nearly allied to the preceding one, the spiral cords on the base are however developed on a much larger space than in corrugata, as may be seen in the quoted figures, and it is chiefly on this character that I have identified the specimens under consideration. 4. Xenophora pallidula Reeve. Reeve. Proc. Zool. Soc. Lond. 1842, p. 162. Conch. Ie. Vol. I, Phorus, fig. 4. KlENER. Coq. Viv. Vol. X, p. 444, PI. 54. Tryon. Man. of Conch. Vol. VIII, p. 160, PI. 44, fig. 79. 7°i5'S., 11 50 15'. 6 E. Madura Sea. 289 M. Mud and broken shells. 21 Spec. 7°35'.4S., U7°28'.6E. Flores Sea. 521 M. Coral. 4 Spec. 5°43'.5 N., ii9°4o'E. Sulu Sea. 522 M. Stony bottom. 2 Spec. o° 1 1' S., I27°25'E. Molucca-Passage. 397 M. Mud, stones and coral. 1 Spec. 9co'.3S., I2Ó°24.5E. Timor Sea. 112 M. Mud, sand and shells. 2 Spec. iO°39'S., I23°40' E. Timor Sea. 520 M. Soft, grey mud with brown upper layer. 1 Spec. The majority of the specimens has the umbilicus not quite closed, partly this may depend on their juvenile state, but in many cases the specimens of the same size are variable in this respect. Generally I have observed that the umbilicus is no reliable character in this genus, that in the majority of young specimens, it exists in such species which have it closed when adult, but that the period of being closed is not the same in one and the same species. As to X. pallidula, Dunker (Index Molluscorum Maris Japonica, 1882, p. 123) has made the same observation, he says: "at contra nostra specimina umbilico angusto perspicuo lamina quidem 95 btat. 12. Stat. 38. Stat. 95- Stat. 139- Stat. 289. Stat. 297. columellae semiobtecto instructo simt". In other respects, especially in sculpture of the base, the specimens perfectly agree with typical ones, received from Japan. 5. \ mtea n. sp. PI. XIII, fig. 1. St.it. ; S., U7°28'.6E. Flores Sea. 521 M. Coral. 2 Spcc. Shell larg hiform, more or less umbilicate, thin, yellowish-white ; whorls about 8, nucleus smooth, quent whorls slightly convex, with irregular surface, lower ones sculptured with diagonal, undulating wrinkles, which are moderately strong and are crossed by much feebier growth-striae ; suture linear, undulate ; the upper surface with various objects agglutinated along mture and at the peripheral keel of last whorl, these objects consist of small stones and shells, which leave however a large part of the shell free, perhaps with exception of the upper whorls, which seem to have been quite covered, but to have lost the foreign bodies. Last whorl sharply carinated, with a rather broad margin, marked by a broacl, shallow canal on the upper surface; base concave, chiefly by the declining border, nearly smooth, but marked under the lens with faint growth-striae, which are strongly curved towards the distal zone, moreover very faintly crispate. L'mbilicus in one specimen open, pervious, partly covered by the columellar margin, in the other specimen it is closed by a thin lamina, leaving a pit, which is also partly overlapped by the columella. Aperture large, oval, its free margin thin, arcuate, its columellar and basal margins strongly curved, the columellar one thickened and reflected, a thin layer of enamel on the body whorl connects the margins. Operculum corneous, thick, nucleus lateral, with a few coarse and very close-set, undulating striae. Alt. about 60, diam. 98; apert. lat. 67 Mill. This species, by the sculpture of the base allied to X. pallidula Rve, has a much finer sculpture, indeed it is nearly smooth, moreover it is considerably larger, the shape of the basal surface is much more oval, the whorls are less convex, and much less covered by the foreign bodies, which are mainly smaller, are placed more remote and consequently leave a larger part of the lower whorls free. In this respect (if only seen from above) it has some resemblance with X. calcu- lifera Rve., which has however more convex whorls and a totally different sculpture of the base. 6. Xcnopliora (Tugurium) exuta Reeve. REEVE. l'roc. Zool. Soc. Lond. 1842, p. 162. Conch. Ie. Vol. I, Phorus, fig. 7. Kil oq. Viv. Vol. X, p. 430, PI. 22, fig. 1. TRYON. Man. of Conch. Vol. VIII, p. 161, PI. 46, fig. 90, 91. Stat. 294. io°i2'.2 S., i24J27.3 IC. Tinior Sea. 73 M. Soft mud with very fine sand. 10 Spec. The specimens are young and very thin ; the largest has (inclusive the projections at the keel only a diam. maj. of 55 Mill. Fischer in Kiener's Coq. Viv. (l.c.) states a diameter of 75 and even of Si Mill., Tryon ol 2 ', inches, corresponding t<> about 70 Mill. Only 3 o\' ■ ecimens have agglutinated each one foreign body, consisting in a specimen of a small valve, in the other two of small fragments of Pelecypoda. The species has, as far as 1 am aware only been recordrd from China and Japan. 96 205 y. Xenophora (Tugurium) calculifera Reeve. REEVE. Proc. Zool. Soc. Lond. 1842, p. 162. Conch. Ie. Vol. I, Phorus, fïg. 1. KiENER. Coq. Viv. Vol. X, p. 438, PI. 7, fïg. 1. Tryon. Man. of Conch. Vol. VIII, p. 159, PI. 44, fig. 75, 76. Stat. 318. 6° 36.5 S., ii4°55'.5E. Java Sea. 88 M. Fine, yellowish-grey mud. 1 Spec. The spiral sculpture of the base is but faintly developed; this may be due to the youth of the specimen, moreover a large part of the basal surface is broken. 8. Xenophora (Tugurium) indica Gmelin. GMELIN. Syst. Nat. Ed. XIII, p. 3575. Reeve. Conch. Ie. Vol. I, Phorus, fig. 2. KiENER. Coq. Viv. Vol. X, p. 433, PI. 9, fig. 1. TRYON. Man. of Conch. Vol. VIII, p. 161, PI. 46, fig. 92, 93. Stat. 204. Between islands ofVVowoni and Buton, northern entrance of Buton-strait. 75 — 94 M. Sand with dead shells. 1 Spec. The specimen is also very young, the foreign bodies consist of a nearly equal number of Foraminifera and fragments of shells and stones. 9. Xenophora (Onustus) solaris Linné. LiNNÉ. Syst. Nat. Ed. XII, p. 1229. REEVE. Conch. Ie. Vol. I, Phorus, fig. 5. KiENER. Coq. Viv. Vol. X, p. 428, PI. 3, fig. 1. TRYON. Man. of Conch. Vol. VIII, p. 162, PI. 47, fig. 1, 2. Stat. 318. 6° 36.5 S., H4°55'.5E. Java Sea. 88 M. Fine, yellowish-grey mud. 3 Spec. Two of the specimens are very young, measuring without the spines only about 22 and 20 Mill. In this juvenile state, the sculpture of the base, so conspicuous in adult ones, is nearly wanting; it consists of short striae radiating from the umbilicus, crosseel by a few (3 or 4) spirals and leaving a large part smooth, unless for very faint, curved, growth-striae, a little more conspicuous at intervals. The third specimen, though not large, is very characteristic. Fam. Vanikoridae. VanikorO Quoy & Gaimard. 1. Vanikoro cancellata Chemnitz. Chemnitz. Conch. Cab. Vol. X, PI. 165, fig. 1596, 1597. Reeve. Conch. Ie. Vol. XX, Vanikoro, fig. \b. Tryon. Man. of Conch. Vol. VIII, p. 67, PI. 29, fig. 60, 61. Stat. 125. Sawan, Siau-island. Reef. 1 Spec. 97 SIP.OGA-EXPEDITIE XLIX1 b. 27 ƒ 'atlikt Recluz. R.ECL1 Ri . Zo I uvier. 1845, p. 48. Magazin de Zool. 1849, p. 53, PI. 131, fig. 2. Man. of Conch. Vol. VIII, p. 68, PI. 29, fig. 71. St.u. g .5 N., 1 1 E. Celebes Sea. 281 M. Coral, sand and stónes. 1 Spec. The specimen is ver) young, white under a brown epidermis. Tryon unites it ;ts a slight modification to V. ligata Recl. It is characterized 1>\ its strong plication on the upper whorls. .. as well as may be desired of such a small specimen, with the figure of Rei Vanikoro Orbignyana Recluz var. tricarinata Recluz. RE( 1.1/ in SOWERBY. Thes. Conch. PI. 482, fig. 24. Tryon. Man. of Conch. Vol. VIII, p. 70, PI. 29, fig. 92. Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud, coral. 1 Spec. The onlv specimen is strongly depressed. Reeve considers this form to be a variety oi / Cumingiana Reeve, which is a synonym of V. Orbignyana. 4. Vanikoro Recluziana Adams cv. Angas. ADAMS & ANGAS. Proc. Zool. Soc. Lond. [863, p. 424. ,mn. Man. of Conch. Vol. VIII, p. 70, PI. 29, fig. 87. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion-bottom, sand and coral. 1 Spec. I cannot distinguish the only specimen trom the typical ones described b\ Adams and Angas, from New South Wales. As it is young, it might be tliat adult specimens show specific ditterences. lam. Naticidae. Natica Adanson. 1. Natica zebra Lamarck. Lamarck. An. s. vert. I'.d. D.di. Vol. VIII, p. 643. ii'ii. Amb. Rariteitkamer, p. 76, PI. 22, fig. G? PH1L1PPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II. Natica. p. iS, PI. 2, fig. [3, 14. REEVE. Conch. Ie. Vol. IX. Natica, fig. 53. Tryi n. Man. h. Vol. VIII, p. 10. PI. 2, fig. 32. Stat. 7. Near reef of Batjulmati (Java). 15 M. Coral and stones. 1 Spe< Stat. 50. Bay ol Badjo, \A I of Flores. Up to 40 M. Mud, sand and shells. 1 Stat. 313. luist of Dangai Besar, Saleh-bay. Reef. 1 Spec. me authors are in doubt if the figure of Ki mimi belongs to this species, his description is short and may be applied to more than one species: "Sommige zwart, sommige vaal, beide met witte slangetjes geschilden". Subsequent authors describe this shell as white with yellow ■ pf ': treaks. 98 20J 2. Natica mozaica Sowerby. SOWERBY. Thes. Conch. Vol. V, Natica, p. 92, PI. IX, fig. 133, 134. TRYON. Man. of Conch. Vol. VIII, p. 19, PI. 3, fig. 51, 52. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 1 Spec. The Siboga-specimen agrees in most parts with Sowerby's description and figure, but the umbilicus is not so quite covered, as it ought to be, according to the figure of the front view. This may be due to the youth of the specimen, or the figure may be less accurate. Some doubt remains about this identification. o- Natica chincusis Lamarck. LAMARCIC. An. s. vert. Ed. Desh. Vol. VIII, p. 644. RUMPH. Amb. Rariteitkamer, p. 76. PI. 22, fig. C. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 19, PI. 2, fig. 15—18. REEVE. Conch. Ie. Vol. IX, Natica, fig. 182. Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 1 Spec. Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 80. Borneo-bank. 50 — 40 M. Fine coralsand. 1 Spec. In the specimen from Stat. 43, the colour-pattern has a tendency to form brown streaks, but shape and sculpture of the shell and the funiculum are the same, that from Stat. 47 is very young with only 2 rows of brown spots. 4. Natica malicsicnsis Dufo. DUFO. Arm. Sciences. Nat. Vol. XIV, 1840, p. 193. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 121, PI. 17, fig. 7. Reeve. Conch. Ie. Vol. IX, Natica, fig. 58 [maheensé). TRYON. Man. of Conch. Vol. VIII, p. 20, PI. 3, fig. 56 (maheensis). Stat. 260. Near Nuhu Jaan, Kei-islands. 90 M. Sand, coral and shells. 2 Spec. 5. Natica arachnoidca Gmelin. Gmelin. Syst. Nat. p. 3674. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 25, PI. 3, fig. 18, 19; PI. 15, fig. 18. Reeve. Conch. Ie. Vol. IX, Natica, fig. 56 {Raynaudiana). TRYON. Man. of Conch. Vol. VIII, p. 20, PI. 3, fig. 57 [Raynoldiand). Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 3 Spec. I have foliowed the views of Philippi and other authors, in applying the name arach- noidea for this species, this has been done in recent time by Hidalgo (Cat. de los Mol. Test. de las islas Filipinas, Joló y Marianes, 1904 — 05, p. 157). 6. Natica solida Blainville. Blainville. Manuel de Malac. PI. i6bis, fig. 8. RUMl'H. Amb. Rariteitkamer, p. 76, PI. 22, fig. E. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 27, PI. 3, fig. 12, 23 {cinnamomca). 99 Rl i li. [< . Vol. I X. Natica, fig. . i. Man. ol Conch. Vol. VIII, p. 45, PI. 20, fig. 9 St.a. 19 B tbuan rring, \\ I ol Lombok. [8 2/ M. River-mud, coral, coral- sand. 1 Sp St.it. 1 rom 40 — 50 M. Fine coralsand. t Spec. Stal lal, Kei-islands. 22 M. Lithothamnion, sand and coral. 2 Spec. ii. Saleh-bay. l'p to 36 M. Sand, coral and mud. 1 Spec. I Stat. 258 are the only ones which have been ■< ill<it»-.l alive, with the operculum, which is calcareous, as has been stated by \. Martens (Rumphius Gedenkboek, Moll. p. Menke (Syn. meth. Mollusc. Ed. alt. [830, p. 47) has not described it, bul locates it in liis Section B * Ventricoso-globosae ; operculo (in omnibus?) corneo". Tryon (l.c.) locates it amongst the species with corneous operculum. As Menke lias not described his species 1 have applied Bi unvtlle's name, which has priority, though he gives no more description thau Menke. Perhaps the name lupinus of Deshayes (An. s. vert. Ed. 11, Vol. VIII, p. 648) will be the • •Kiest name accompanied by a description. 7. Natica a/a papilionis Chemnitz, var. articulata Philippi. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II. Vol. II. Natica, p. uy, PI. 1-, fig. 4, 8. Stat. 240. Banda. 9 -45 M. Black sand, coral. 1 Spec. Philippi has separated this form as a valid species. The Siboga-specimen exhibits all ti 1 ters, but I think they are only vanetal. Tryon Man. of Conch. Vol. VIII, p. 21), quotes it simply a^ a synonym. The specimen is about as small as Philippi's fig. S, and possesses the fine, sulcated operculum. Natica euzona Recluz. Rl 1 LUZ. Proc. Zool. Soc. Lond. 1843, p. 204. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II. Vol. II. Natica, p. 147. REEVE. ("inich. 1c. Vol. IX, Xatica, fig. 6j c {picta par- . ON. Man. of Conch. Vol. VIII, p. 22 {picta pai Stat. 47. Bay <>f Bima, near South fort. Shore. 1 Spec. Stat. 51. Molo-strait. 69 -91 M. Fine, grey sand, coarse sand with shells and stones. Stat. 60. Haingsisi, Samau-island. Keef. i Spec. .1. 200. Xuhu Jaan, Kei-islands. 90 M. Sand. coral and shells. 2 Spec. Stat. 313. East "I' Dangar licsar, Saleh-bay. l'p to 36 M. Sand, coral and mud. 1 Spec. Many authors have considered .\ . euzona to be merely a variety or even a synonym of .V. picta Reclu: the Siboga-specimens belong without exception to euzona, I have applied tliat name. Anatomy perhaps will produce distinguishing characters. Natica marochiensis Gmelin. 5yst. Nat. p. $673. Conch. Ie. Vol. IX, Xatica. Iil;. 52. Man. of Conch. Vol. VIII, p. 22, PI. ;. fig. 74, 75. 209 Stat. 2>7- Sailus Ketjil, Paternoster-islands. Up to 27 M. Coral and coralsand. 1 Spec. Stat. 53. Bay of Nangamessi, Sumba. Up to $6 M. Coralsand. 1 Spec. Stat. 277. Kulewatti-bay, Dammer-island. 44 M. Sand. 1 Spec. These specimens are small and those from Stat. 37 and 53 are moreover bleached, conse- quently I cannot make out to which variety they belong ; the majority of specimens belongs to : var. tessellata Philippi. PHIUPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 48, PI. 7, lïg. 7. TRVON. Man. of Conch. Vol. VIII, p 23, PI. 5, fig. 79 (lunda). Stat. 4. Djangkar (Java). 9 M. Coralsand. 2 Spec. Stat. 12,. Bay of Pidjot, Lombok. Up to 22 M. Mud, coral and coralsand. 1 Spec. Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 3 Spec. Stat. 116. West of Kwandang-bay entrance. 72 M. Fine sand with mud. 1 Spec. Stat. 261. Elat, West coast of Great-Kei-island. 27 M. Mud. 1 Spec. As the views of authors about N. marochiensis, its synonyms and varieties are very different, I have applied the name given by Philippi to a shell with characteristic colour-pattern, some specimens are partly of a brownish ground-colour. 10. Natica nebttlosa n. sp. PI. XIII, fig. 2. Stat. 240. Banda. 9 — 45 M. Black sand, coral. 1 Spec. Shell conically globose, thin, smooth, shining, with traces of a thin epidermis towards the aperture; whorls 51/.-,, convex. The nuclear and part of subsequent whorls are nearly smooth, but have a few radiating striae and the suture is bordered by a spiral ridge. The last 21/, whorls are separated by a deep suture, with radiating striae, gathered puckerings below it. Moreover the shell is covered with very fine growth-striae and a few scattered spirals, which are only visible under a strong lens. Colour very light lilac, with a narrow white zone at the suture, and a broader one round the umbilicus; the lilac zone of the shell has very faint rufous- brown streaks, which are more or less waved, forming at the shoulder of last whorl, a row oi arrowdieaded spots and a row of squarely-oblong blotches, just above the umbilical white zone. Aperture oblong-ovate, rather angular at the upper corner; right margin thin, curved, columellar margin nearly straight, but slightly concave, its upper part reflected on the body whorl, tongue- shaped just above the umbilicus, of which only a small, deep pit of the upper part remains, the umbilicus being nearly quite filled by a white, porcellaneous funiculum, with only a groove at its left side, originating from the umbilical pit, becoming shallow towards the base. Oper- culum calcareous, for a large part smooth and shining, near the nuclear part thickened by a dull layer, bordered at the left by a comma-shaped rim ; right margin bordered by 3 raised rims, of which the outermost is narrow and not strongly developed, especially towards the base of the aperture; the median rim is rather narrow, much raised, bordered externally by a shallow, internally by a deeper groove ; internal rim the broadest, separated from the rest of the operculum by a, deeply incised groove. Alt. 151/,, lat. I41/,; apert. alt. 121/,, lat. 8 Mill. 210 II" this :i without the operculum, it might 1><- considered to be a varietj of the polymorph -\ but its umbilicus is much more filled by the funiculum. Th< culum is quite different from that oi marochiensis described bj Watson (Challenger- tropoda, p. nd from specimens which I could compa ii. Melvill. \ 11 i . Memoirs and Proc. Manch. Lit. and 1'hil. Soc. Vol. 41, 1897, N°7, p. 1 1, PI. 6, fig. 20. \ . [20°2i E. Sulu Sea. 350 M. Sand. 1 Spec. Th imen is a young, empty shell; it is not probable that this species with its minent colour-markings, has lived at so greath a depth. 12. Natica asellus Reeve. REEVE. Conch. Ie. Vol. IX, Natica. fig. 136. rRYON. Man. of Conch. Vol. VIII, p. 24, PI. 6, fig. 3, 4. Stat. 7. Near reef of Batjulmati (Java). 15 M. ('mal and stones. 1 Spec. The umbilicus of the Siboga-specimen is not quite closed and the row of small dots between the two blue-black bands is wanting. I think these differences are of too little importance, to be in doubt about the identity. [3. Natica atypha Watson. WATSON. Report Voy. Challenger. Zool. Vol. XV, Part 42, Gaptrop. p. 43S, Tl. 27. fig. 2. 2. Madura-strait. 56 M. Grey mud with some radiolariae. 1 Spec. Stat. 47. Baj of Bima, near South fort. 55 M. Mud with patches of line coralsand. 1 Spec. West of Kwandang-bay-entrance. 72 M. Fine sand with mud. 5 Spec. The specimens are dead, bleached shells. 14. Natica colliei Recluz. Rei LI /. 1'roc. Zo,,l. Soc. Lond. 1843, P- 2°ö- Piiii.iiti. Martini-Chemn. Conch. Cab. Ed. II. Vol. II, Natica, p. 70, PI. 11, fig. REEVE. Conch. Ie. Vol. IX. Natica. fig. 112. Man. of Conch. Vol. VIII, p. 26, PI. 7, fig. 34. Stat. 99. North-Ubian, Sulu-archipel -23 M. Lithothamnion-bottom. 1 Spec. 15. Natica tniriasensis Recluz. ii/. Proc. Zool. Soc. Lond. 1843, p. 212 [buriasiensis). PH1LIPPI. Martini-I hemn. ( onch. I ab Ed. II. Vol. II. Natica, p. 133, PI. is. fig. 17. Rl onch. Ie. Vol. IX. Nat 1 ;8. ON. Man. of Conch. Vol. VIII, p. 29, PI. 8, fig. 58. 102 2 I I Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. Stat. 47. Bay of Bima. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 53. Bay of Nangamessi, Sumba. Up to 36 M. Coralsand. 2 Spec. Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud, coral. 3 Spec Stat. 142. Laiwui, North coast of Obi Major. Reef. 1 Spec. Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 2 Spec. Stat. 311. Sapeh-bay, East coast of Sumbawa. Up to 36 M. 1 Spec. The specimens are smaller than they ought to be according to the descriptions anti figures, bnt agree in every other respect. 16. Natica lincata Lamarck. LAMARCK. An. s. vert. Ed. Desh. Vol. VIII, p. 640. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 11, PI. 1, fig. 9. REEVE. Conch. Ie. Vol. IX, Natica, fig. 24. TrvoX. Man. of Conch. Vol. VIII, p. 29, PI. S, fig. 57. Stat. 296. Noimini, South coast of Timor. 8 — 36 M. Sandy mud. 1 Spec. 17. Natica gracilis Recluz. RECLUZ. Journ. de Conch. Vol. I, 1S50, p. 387, PI. 14, fig. 11. TRVON. Man. of Conch. Vol. VIII, p. 29, PI. 8, fig. 59. Stat. 4. Djangkar (Java). 9 M. Coarse sand. 1 Spec. Stat. 47. Bay of Bima. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 142. Laiwui, North coast of Obi Major. Reef. 1 Spec. In the specimen from Stat. 142 the chestnut lines are wanting, but otherwise the shell agrees with typical ones, it may be bleached and is not quite adult; that trom Stat. 4 is a fresh specimen, with a brovvnish epidermis and operculum; the latter is calcareous, white, with 7 deep grooves, separating rather broad lirae," columellar margin of the operculum notched, partly by the terminations of the grooves, partly by 2 shorter grooves, running at a little distance from the margin. 18. Natica rufa Born. Born. Testacea Mus. Vindobon. p. 398, PI. 17, fig. 3, 4. RUMFH. Amb. Rariteitkamer, p. 76, PI. 22, fig. D. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 14, PI. 2, fig. 1, 2. REEVE. Conch. Ie. Vol. IX, Natica, fig. 70. TRVON. Man. of Conch. Vol. VIII, p. 29, PI. 9, fig. 62, 63. Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud. 1 Spec. Stat. 279. Rumah-Kuda-bay, Roma-island. 36 M. Mud and sand. 2 Spec. The operculum has been described with a few words by Rumph, it is thick, especially near the nucleus, where both specimens from Stat. 279 have a knob, resembling a small agglutinated pebble; the whole margin is crenulate, the external rim squamose, and separated from a very 103 2 | j 1 rim, by a large groove, with two intermediate rims, which are also crenuiate; at the proximal side of the broad rim runs a groove with a smal] rim therein. i u. .\ ■ Lamarck. I Ai v ert. Ed. 1 >esh. Vol. VIII, p. 637. PHILIPPI. Martini-Chemn. ( onch. Cab. Ed. II, Vol. II, Natica, p. 21, PI. 3, fig. 1. 2, PI. 8, Rl mch. te. Vol. IX. Natica, fig. 46 Tryon. Man. of Conch. Vol. VIII, p. 32, PI. 9, fig. 64. St.it. [33. Lirung, Salibabu-island. l'p to 36 M. Mud and hard sand. 2 Spcc. Stat. 261. Klat. West coast of Great-Kei-island. 27 M. Mud. 2 Spcc. 'Die specimens are young. Natica crassa n. sp. PI. XIII, fig. 3. Stat. 58. Sol ia, Savu. lp to 27 M. Sand. 1 Spec. Shell sniall. subglobose, with blunt spire, thick, shining, with rather strong growth-striae, strongest below the suture, and microscopic waved spirals. Whorls 41/,, slightly convex, especially the upper ones, which are separated by a conspicuous suture, which is shallower in the last whorl : this suture strongly descends towards the aperture, and on this part the growth-striae are very strong and crowded; just behind the aperture the shell is slightly contracted. Colour white, with a large, irregular, yellowish-brown zone near the median part of last whorl, this encloses irregular white spots. Aperture small, oval, with a blunt angle above; right margin thick, curved, rounded below ; columellar margin nearly straight with a callous pad at the upper part and a thick. subtriangular, porcellaneous deposit, forming in part the end of the funiculum and covering the upper part of the umbilicus, which is narrow interiorly, hut apparently pervious: a deeply incised rather broad groove, separates the funiculum from the bodywhorl, o the columella joined to the thick, rounded basal margin of aperture by an angle which produces a short tongue-shaped layer, just below the umbilical groove. Interior of aperture, smooth, white. Operculum wanting, luit the columella has a slight groove, indicating the presence of a calcareous operculum. Alt. 71/,, lat. 81/,; apert. alt. 5'/,, lat. 3 Mill. This species may be recognized by its thick shell, by the strongly descendin^ suture, the strong striae near the aperture, which is unusually small. I know no nearly allied specie-,. 21. Natica supraornata n. sp. PI. XIII, fig. 4. Stat. 274. 3°28'.2S., 1 340 53'. o E. Near Aru-islands. 57 M. Sand and shells, stones. 2 Spcc Shell small, depressedly subglobose, with blunt spire; rather thick, smooth, whorls 3 one convex, the remaining nearly flat; sculpture consisting of very fine growth-striae, : • ar the suture and towards the aperture. Colour yellowish-white, with a collar 104 of chestnut spots of an irregular shape, but having a tendency to be triangular below the suture and on part of the penultimate whorl; these spots enclose irregular whitish spots. Aperture oval, with rounded basal and outer margin, columellar margin nearly straight; upper angle of aperture blunt, with a thick layer of enamel on the body whorl, forming a rim near the angle of aperture and connected with the funicular tongue-shaped pad, which fills a large part of the umbilicus, this latter seems to be pervious, and is formed below of a deep, large groove round the funiculum, the whole columellar part is light chestnut (perhaps bleached). Operculum wanting, probably calcareous. Alt. 6, lat. 6-/.; apert. alt. 41/,, lat. 3 Mill. This shell is remarkable for its brown columella and the blotches near the suture. It may be allied to N. pseustes Watson (Challenger Gastrop. p. 44, PI. 27, fig. 3) but besides the collar, I see no brown markings, as in that species and the umbilicus seems to be different, for Watson describes it as disappearing behind the pillar callus, and I can introducé a fine needie at a relatively considerable depth. 22. Natica simplex n. sp. PI. XIV, fig. 1. Stat. 310. 8°30'S., II9°7'.5 E. Flores Sea. 73 M. Sand with few pieces of dead coral. 1 Spec. Shell conically globose, rather thin, smooth and shining. Whorls z,1/» moderately convex, forming a rained spire. Sculpture consisting of very fine growth-striae, stronger towards the upper suture of each whorl, crossed by microscopic, wavy, spiral striae. Colour of shell light yellowish- redbrown, with a narrow white zone below the suture, and a large one occupying the base. Suture of last whorl gradually descending towards the aperture, upper margin of last whorl appressed on the bodywhorl. Aperture ovate, with a blunt angle above, right margin regularly curved, more rounded below and passing imperceptibly into the basal margin ; columellar margin nearly straight, with a porcellaneous pad above on the bodywhorl, slightly reflected over the umbilicus, which is rather large, pervious, with scarcely any tracé of a funiculum, consequently the columellar margin is only inconspicuously thickened, on the place where the funiculum should terminate. Interior of aperture brownish. Operculum wanting, probably calcareous, for the columella has a slight ridge. Alt. 141/,, lat. 14; apert. alt. io1/,, lat. 7. This species is of a very simple character, in its umbilicus it resembles N. semisukata Gray, by the wanting funiculum. 23. Natica (Neverita) sp. Stat. 204. Bet ween islands of Wowoni and Buton. 75 — 94 M. Sand with dead :;helLs. 1 Spec. A probably young, bleached shell belongs to the subgenus Neverita, I cannot identite- it with any described species, but it is not in sufficiënt good condition, to describe it as new. 24. Natica (Lunatia) simulans Smith. SMITH. Ann. and Mag. of Nat. Hist. Ser. 7, Vol. XVIII, 1906, p. 173. I05 SIBOGA-EXPEDITIE XI.IX1^. 2S 214 ', u 5i a. 9Sg M. < rlo :e. i Spec. .:. ju. . l . Banda Sea. 462 M. Fine grey am 1 mud. 1 Spec. In ' Sta. 883 M. Mud. 1 Spec. The specimens are young, the largesl having pnly a diameter of to Mill.. whereas the smallest specimen n I b) Smith, has a diameter of :i Mill. As the specimens have been compared 1>\ the author, 1 am not in doubt about the identification. 25. Natica (Lunatia faba n. sp. PI. XIII, fig. 5. St.it. SS. o°34'.6N., mm s.; E. Makassar Strait. [301 M. Fine grey mud. 1 Spec. Shell small, conically subglobose, with blunl (eroded) spire, thin, nearly smooth, but with fine growth-striae ; white under an olive epidermis. Whorls about 31/.,, nucleus wanting, remaining whorls moderately convex, separated by a canaliculate suture, last whorl regularly rounded. Aperture oblong-oval, outer and basal margins regularly curved, columellar margin concave, its upper part forming on the left side a thick layer of enamel on the bodywhorl, becoming narrow towards the median part, where it partly covers the umbilicus and is again thickened and reflected in joining the basal margin. Umbilicus narrow, so much covered, as to leave only a narrow slit. No funiculum. Operculum corneous. Alt. 51 „ lat. 4,,: apert. alt. 3» , lat. 21/, Mill. This species is allied to tin- preceding one, but is more oval, has a smaller umbilicus, a canaliculate suture and the puckerings below the suture, which are present in the specimens of A*. simuians Smith of the same si/e, are wanting. It has no juvenile appearance. 26. Natica Mamma' aurantia Lamarck. LAMARCK. An. s. vert. Md. Desh. Vol. VIII, p. 632. RUMPH. Amb. Rariteitkamer, p. 76, X" je. I'mi uil. Martini-Chemn. Conch. Cab. Md. II, Vol. II, Xatica, p. 34, PI. 4, fig. 13, 14. REEVE. Conch. Ie. Vol. IX. Xatica. fig. 20. TRYON. Man. of Conch. Vol. VIII, p. 42, PI. 15, fig. 39. Stat. 80. Borneo-bank. 40 — 50 M. Fine coralsand. 1 Spec. var. Mittrei 1 lombron & Jacquinot. Hombron & Jacqi Voy. Astrol. & Zei. p. 65. Stat. 114. Kwandang-bay-entrance. 75 M. Hard sand, very line. 1 Spec. Both specimens are young, that identified as var. Mittrei has the umbilicus not quite tilled. var. straminea Recluz. Ki.< LUZ. Proc. Zool. Soc. Mond. 1S43, p. 211. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II. Vol. II. Natica, p. 113. PI. n>, fig, 3. 1 <>nch. Ie Vol. IX, Natica, fig. 32 (var. lutea s. straminea). .. M.m. of Conch. Vol. VIII, p. 42. PI. 15, fig. 40. jailus Ketjil, Paterno ter-i lands. Up t < > 2j M. ( oral and coralsand. 1 Spec. Atjatuning, West coast <>( New Guinea. Keef. 1 Spec. 106 215 Stat. 172. Between Gisser and Ceram-Laut. Reef. 7 Spec. Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 2 Spec. Stat. 279. Roma. Reef. 1 Spec. In accordance with the majority of authors I have united this form to Ar. aiirautia. 27. Natica (Mam ma) pozvisiana Recluz. Recluz. Proc Zool. Soc. Lond. 1S43, p. 210. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 46, PI. 7, fig. 4. REEVE. Conch. Ie. Vol. IX, Natica, fig. 22. TRYON. Man. of Conch. Vol. VIII, p. 42, PI. 15, fig. 42. Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. I Spec. Stat. 71. Makassar. Up to 32 M. Mud, sand with mud, coral. 1 Spec. Stat. 116. West of Kwandang-bay-entrance. 72 M. Fine sand with mud. 1 Spec. The specimens are young, those from Stat. 47 and 116 are in fresh condition, with the thin yellowish operculum. 28. Natica (Mamma) suffusa Reeve. Reeve. Conch. Ie. Vol. IX, Natica, fig. 129. TRYON. Man. of Conch. Vol. VIII, p. 44, PI. 19, fig. 87. Stat. 37. Sailus Ketjil, Paternoster-islands. Up to 27 M. Coral and coralsand. 1 Spec. Stat. 64. Kambaragi-bay, Tanah Djampeah. Up to 32 M. Coral, coralsand. 1 Spec. Stat. 80. Borneo-bank. 50 — 40 M. Fine coralsand. 1 Spec. Unfortunately the only specimen from Stat. 80 is an empty shell. It agrees in every respect with the figure and description of Reeve. I think Tryon was quite wrong in suggesting that it should be a variety of N. mamilla Lin., it is sufficiently distinct by its apex, umbilicus and colour. The locality recorded by the authors quoted above is New-Ireland. The specimens from Stat. 37 and 64 are still more bleached, the violet colour being only perceptible on the spire. 29. Natica (Mamma) mamilla Linné. Linné. Syst. Nat. Ed. N, p. 776, N° 627. RUMPH. Amb. Rariteitkamer, p. 76, PI. 22, fig. F. Philippi. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 31, PI. 4, fig. 7, 8. Reeve. Conch. Ie. Vol. IX, Natica, fig. 27. TRYON. Man. of Conch. Vol. VIII, p. 49, PI. 16, fig. 46. Stat. 47. Bay of Bima, near South fort. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 50. Bay of Badjo, West coast of Flores. Up to 40 M. Mud, sand and shells. 1 Spec. Stat. 86. Dongala, Palos-bay, Celebes. 36 M. Fine, grey mud. 3 Spec. Stat. 174. Waru-bay, North coast of Ceram. Reef. 1 Spec. Stat. 231. Amboina. 40 M. Coralsand. 2 Spec. Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 1 Spec. Stat. ? 3 Spec. One specimen from Stat. 86, though about fullgrown, has the umbilicus still open, but else it is quite typical. 107 !l6 \ i Mamma flemingiana Recluz. Ki . i i . . Pi l ond. 184 }, p. 2 1'iiit 1111. Martini-Chemn. Conch. Cab. Ed. 11, Vol. II. Natica, p. 126, PI. [8, fig. 7. ki 1 Vol. IX. Nal I mch. Vol. VIII, p. 50, PI. ió. fig, 51. • 1.. ilm.m Tring, West coast of Lombok, is — 27 M. River-mud, coral, coral- ■ 1 1 . 1 S p A young, slightly broken, dead shell, sufficiendy agreeing with the quoted figures. ;i Mammaj albumen Linné. LlNNÉ. Syst. Nat. Ed. X. p. 771 . N "26. «PH. Anih. Rariteitkamer, p. 76, PI. 22, fig. B. Philippi. Martini-Chemn. Conch. Cab. Ed. II, Vol. II. Natica, p. 29, PI. 4, fig. 3, 4 REEVE. lunch Ie. Vol. IX. Natica, fig. 31. TRYON. Man. ut' Conch. Vol. VIII, p. 47, PI. 21, fig. 5. >tat. 153. Lirung, Salibabu-island. Up to 36 M. Mud and hard sand. 1 Spec. v. Martens locates this species in the- subgenus Neverita\ I have followc-d other authors f. i. .Mi 1 vut, who (Proc. Zool. Soc. 1901, p. 359) mentions it as Mamma. 32. Natica (Mamilla) melanostoma Gmelin. GMELIN. Syst. Nat. Ed. XIII, p. 31 RUMPH. Amb. Rariteitkamer, p. 76, X" Vllb. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II. Vol. 11. Xatica, p. 30, PI. 4. fig. 5, 6, 15, 16. REEVE. Conch. Ie. Vol. IX, Xatica, fig. 78. TRYON. Man. of Conch. Vol. VIII, p. 50, PI. 21, fig. 13, 14; PI. 22, tig. 21. Stat. ;So. Borneo-bank. 40 — 50 M. Fine coralsand. 1 Spec. Stat. 133. Lirung, Salibabu-island. Up to 36 M. Mud and hard sand. 1 Spec. Stat. 104. 1 42.5 S., i3O047.5 E. Halmahera Sea. 32 M. Sand, small stoncs and shclls. 1 Spec. Stat. 172. (jisscr. Reef. 2 Spec. var i Souleyet. Voy. Bonite. p. 581, PI. 35. lig. S — 10. Man. ut' Conch. Vol. VIII, p. 51. PI. 21, tig. 17. Sta' iay >>( Pidjot. Lombok. Up to 22 M. Mud, coral and coralsand. 1 Spec. Stat. 5". 11, ty ol . west coast of Flores. Up to 40 M. Mud, sand and shells. 1 Spec. Natica ■Mamilla melanostomoides Quoy & Gaimard. Gaimard. Voy. de l'Astrolabe. Vol. II. p. 22.1. PI. 66, tig. 4 — 8. Philippi. Martini-Chemn. Conch. Cab. Ed. II. Vol. II, Xatica, p. 58, PI. 9, tig. 5. REEVE. Conch. [c. Vol. IX. \ r. ,oi. Man. of Conch. Vol. VIII, p. 50, PI. 21, fig, [6; PI. 22, fig. 21 [melanostoma var.). - "\ Bima. 55 M. Mud with patches ut fine coralsand. 2 S] 71. Makassar. Up to 52 M. Mud, sand with mud, coral. 1 Spec. t. 131. Beo, Karakelang-islands. 13 M. Mud mm\ sand. t Spec. 10S 2 I 7 Philippi and Reeve have held this species separate, Tryon unites it to die precedino- species. Troschel (Gebiss der Schnecken, p. 183) found no valuable differences between the radulae, but conchologically the species is easily recognizable. 34. Natica (Mamilla) simiae Deshayes. DESHAYES in Lamarck. An. s. vert. Ed. Desh. Vol. VIII, p. 652. Philippi. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 35, PI. 4, tig. 17. Reeve. Conch. Ie. Vol. IX, Natica, fig. 76. TRYON. Man. of Conch. Vol. VIII, p. 51, PI. 21, fig. 19, 20. Stat. 66. Bank between Bahuluwang and Tambolungan. 8 — 10 M. Dead coral. 1 Spec. Stat. 164. i°42'.5 S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 1 Spec. Stat. 279. Rumah-Kuda-bay, Roma-island. 36 M. Mud and sand. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to t,6 M. Sand, coral and mud. 1 Spec. The specimens are small, probably young, they may be easily recognized by the waved streaks. 35. Natica (Mamilla) filosa Sowerby. SOWERBY in Reeve. Conch. [c. Vol. IX, Natica, fig. 72. TRYON. Man. of Conch. Vol. VIII, p. 51, PI. 22, fig. 22. Stat. 33. Bay of Pidjot, Lombok. Up to 22 M. Mud, coral and coralsand. 1 Spec. Stat. 47. Bay of Bima. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand coral and mud. 1 Spec. The specimens are young but easily recognizable by the spiral striae. 36. Xatica (Mamilla) maitra Bruguière. Bruguière. Encycl. Meth. p. 453, fig. \a, b. Philippi. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Natica, p. 58, PI. 9, fig. 6. REEVE. Conch. Ie. Vol. IX, Natica, fig. 25. Tryon. Man. of Conch. Vol. VIII, p. 51, PI. 22, fig. 24. Stat. 47. Bay of Bima. 55 M. Mud with patches of fine coralsand. 1 Spec. One very young specimen. l~j . Natica (Amauropsis) apora Watson. WATSON. Voy. of H. M. S. Challenger, Zoology, Vol. XV, Part 42, p. 454, PI. 27, fig. 11. Stat. 48. 8°4'.7 S., u8°44'.3 E. Flores Sea. 2060 M. Fine grey mud, partially green. 1 Spec. Stat. 52. 9°3'.4S., U9°56'.7E. Savu Sea. 959 M. Globigerina ooze. 1 Spec. Stat. j6. 4°22.i S., ii8°i6'.9E. Makassar Strait. 2029 M. Fine grey mud. 3 Spec. Stat. 271. 5°46'.7 S., i34°o'E. Arafura Sea. 1788 M. Bluish green mud of a uniform appearance. 2 Spec. Stat. 300. io°4S'.6S., i23°23'.i E. Timor Sea. 918 M. Fine, grey sand. 2 Spec. The specimen from Stat. 48 is much larger than Watson's figure, its altitude being 27 Mill.; one specimen from Stat. 271 has the umbilicus not quite closed, but as the columellar 109 2l8 htly damaged, this seems to be no difference "l anj importance; a specimen trom Stal the only one that has been collected alive, lias a golden-yellow operculum. Moreover there are several specimens of Natica, belonging to different subgenera, which are young and in bad condition, so I could not identify them, and even il' afterwards om two might prove to be new, I tliink it is not advisable to describe new species on such poor imens, in a genus where the species seldom have prominent characters Sigaretus Lamarck. i. Sigaretus linneanus Recluz. LUZ in Chenu. 111. Conch. Vol. 111, Sigaretus, PI. i, fig. 4. WEINKAUFF. Martini-Chemn. Conch. Cab. Ed. 11, Vol. VI, Sigaretus, p. t,j, PI. 9, fig. 2, ;. TRYON. .Man. of Conch. Vol. VIII, p. 59, PI. 2C, fig. 89, 90. Stat. 285. South coast of Timor. ;.) M. On the Limit between mud and coral. Lithotham- nion. 1 Spec. Stat. 294. South coast of Timor. 73 M. Soft mud with very fine sand. 1 Spec. The specimen from Stat. 285 is very small and covered by a brown epidermis. I can however see nothing elsc in it, luit a young specimen of .S'. linneanus Red. Fam. Marseniidae Bergh. Marsenia Leach. 1. Marsenia perspicua Linné. 2. Marsenia Sibogae Bergh. Chelyonotus (Swainson) Bergh. 1 . Chelyonotus Souper i Bergh. For this family see appendix by Prof. R. Bergh in Part I of" this publication. Fam. Si 11 akiihai Chemn. Solarium Lamarck. 1. Solarium per spectivum Linné. Linné. Syst. Nat. Ed. X, p. ~y;. N° 503. ,1PH. Amb. Rariteitkamer, p. 91, PI. 27, fig. L. Philippi. Martini-Chemn. ('(inch. Cab. Ed. II. Vol. II. Solarium, p. 2j, PI. : [incisum). kii 1 nch. Ie. Vol. XV, Solarium, fig. 11. . Man. of ('(inch. Vol. IX, p. >S, PI. 2, lig. iS, 1 1 10 2 19 Stat. 19. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- sand. 1 Spec. Stat. 47. Bay of Bima. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 205. Lohio-bay, Buton-strait. 22 M. Sandy mud. 1 Spec. Stat. 231. Amboina. Reef. 2 Spec. 2. Solarium modestum Philippi. PHILIPPI. Zeitschr. für Malakoz. 1848, p. 171. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Solarium, p. 15, PI. 3, fig. 1. REEVE. Conch. Ie. Vol. XV, Solarium, fig. 12. Tryon. Man. of Conch. Vol. IX, p. 9, PI. 2, fig. 22, 23. Stat. 4. Djankar (Java). 9 M. Coarse sand. 1 Spec. Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. Stat. 47. Bay of Bima. 53 M. Mud with patches of fine coralsand. 1 Spec. Stat. 51. Madura-bay. 69 — 91 M. 1 Spec. Stat. 58. Seba, Savu. Up to 27 M. Sand. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. The specimens are young, but well characterizecl by the white, crenulate umbilical rim. 3. Solarium sp. Stat. 45. 7°24'S., ii8°I5'.2E. Flores Sea. 794 M. Fine grey mud. 1 Spec. Stat. 95. 5°43'.S N., 119° 40' E. Sulu Sea. 522 M. Stony bottom. 2 Spec. The specimens are young and in very bad condition, too bad to identify them. I think they will not have lived at these great depths. 4. Solarium (Philippia) hybridum Linné. Linné. Syst. Nat. Ed. X, p. 757, N° 504. KiENER. Coq. Viv. Vol. IX, Solarium, p. 7, PI. 3, fig. 5. PHILIPPI. Martini-Chemn. Conch. Cab. p;d. II, Vol. II, Solarium, p. 14. REEVE. Conch. Ie. Vol. XV, Solarium, fig. 21. TRYON. Man. of Conch. Vol. IX, p. 14, PI. 5, fig. 61, 62. Stat. 93. Pulu Sanguisiapo, Tawi-Tawi-islands, Sulu-archipelago. 12 M. Lithothamnion, sand and coral. 1 Spec. Stat. 248. Rumah Lusi, North point of Tiur-island. Up to 36 M. 1 Spec. Philippi has not separated this species from the next one. 5. Solarium (Philippia) cingulum Kiener. KiENER. Coq. Viv. Vol. IX, Solarium, p. 6, PI. 3, fig. 6. REEVE. Conch. Ie. Vol. XV, Solarium, fig. 19. Tryon. Man. of Conch. Vol. IX, p. 15, PI. 5, fig. 63, 64. Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 1 Spec. Stat. 311. Sapeh-bay, East coast of Sumbawa. Up to 36 M. Mud and sand. 1 Spec. 1 1 1 var <■ v Martens. \. MartensJ. l Molluskenfauna dei Insel Mauritius. Moll. \>. :■ KlENER. Coq. Viv. Vol. IX. Solarium, PI. 3, fig. $a [liybridum var.). 1'iiii.iiti. Martini-Chemn. Conch. Cab. Ed. II. Vol. II. Solarium, PI. 2, fig. 14. 15. 'i Spec. This 'ii perfectly agrees with the figure. Fluxina Dall. 1. Fluxina marginata n. sp. PI. XIV, fig. 2. St.it. 241. 4 24.3 S., 1 .'m |_9'.3 E. Banda Sea. 1570 M. Dark sand with small stones. 2 Sprc. Shell whitish, thin, very depressed, conic, sharply keeledatthe periphery, postnuclear whorls about 5, spirally divided into 2 parts, convex above luit concave if taken as a whole, nucleus umbilicate; sculpture consisting of very faint spiral striae, crossed by stronger, undulate, riblike, rather distant ones, with faint growth-striae in the interstices; these riblike striae are less conspicuous on tin- last whorl; the lower pari of each whorl has tin- appearance of a broad margin, slightly concave above, separated from the upper part of each whorl, in- a kind of spiral rib, which is slightly crenulated, this marginal part is sculptured In' rather conspicuous spiral aml stronger, oblique, luit nearly straight, riblike radiating striae, which on the upper part make the keel slightly crenulate (on the Iargest specimen the keel is smooth, on account of the less conspicuous sculpture . basal part of last whorl convex, with a \\:w more or less conspicuous spiral striae around the umbilicus, and faint, stronglj curved, radiating striae; margin separated from tin- central part by .1 deep groove, with about 7 spirals and faint growth-striae. Umbilicus large, pervious, scalar, bordered by a strong rib which is surrounded by a deep groovi . umbilical wall perpendicular. Aperture rhombic, with convex upper, outer and basal margins; keel protracted in a claw in the younger specimen, columellar margin excavated, slightly thickened, angular below near the umbilical keel, and forming there a somewhat tongue-shaped triani Ah. ,v ,. lat. s ,. apert. alt. i,;,, lat. 21/., Mill. Alt. ; , lat. S; apert. alt. 1 . lat. 2 , Mill. This is the second species oi Fluxina from the Indian Ocean, quite different from the ibed species, by the broad margin at the periphery; the claw-like angle of the aperture and the umbilical ril), have induced me to locale it in this genus. 2. Fluxina trochiformis n. sp. PI. XIV, fig. ;. Stat. 178. 240 S.. i28°37'.5 E. Ceram Sea. 835 M. Blue mud. 1 Sp Shell white. thin. conic, sharply keeled, whorls about <>. nucleus slightly umbilicate, post- ear whorls with very fine curved growth-striae, nearly smooth, nearly straight, luit slightly upper pan. slightly concave near the lowér suture, the whorls are prominently keeled uure. the keel being il 1 1 < • 1 \ (i Base a little convex, excavated towards the with three fme spirals ai ome distance from the periphery and a few, scarcelj 22 I visible ones towards the central part, moreover with numerous very fine curved growth-striae. Umbilicus moderately large, pervious, scalar, with a rib at its margin and a groove just around this rib. Aperture subtriangular, its margins broken, upper one convex, basal one nearly straight, columellar margin short, excavated, angular below by the end of the umbilical rib. Alt. 21/,, lat. 5; apert. alt. i, lat. i3/+ Mill. Resembling the former species by its umbilicus and other general characters, but quite different in many particulars. Fam. Toriniidae. Torinia Gray. i. Torinia planulata Hanley. Hanley. Thes. Conch. Vol. III, p. 238, fig. -jj. TRYON. Man. of Conch. Vol. IX, p. 17, PI. 5, fig. y/. Stat. 47. Bay of Bima. 55 M. Mud with patches of fine coralsand. 1 Spec. Stat. 99. North-Ubian, Sulu-archipelago. 16 — 23 M. Lithothamnion-bottom. 1 Spec. 2. Torinia dorsuosa Hinds. HlNDS. Proc. Zool. Soc. Lond. 1844, p. 23. PHILIPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Solarium, p. 37. TRYON. Man. of Conch. Vol. IX, p. 17, PI. 5, fig. 80, Si. Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 1 Spec. Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 3 spec. The specimen from Stat. 258 differs from the type, by a third liration at the periphery and finer sculpture of the base ; as the only specimen is not yet adult and the sculpture is also variable in the typical specimens, I have provisionally considered it as a variety or individual aberration. From T. ccrdalcum Melv. (Ann. and Mag. Nat. Hist. Ser. 7, Vol. XII, 1903, p. 297, PI. 20, fig. 16) which is also tricarinate, it differs by its wide umbilicus, the structure of the columella etc. 3. Torinia costata n. sp. PI. XIV, fig. 5. Stat. 279. Rumah-Kuda-bay, Roma-island. 36 M. Mud and sand. 2 Spec. Shell discoidally-depressed, deeply umbilicate, thin, yellowish-brown. Nucleus umbilicate, reddish-brown, smooth, consisting of at least 2 whorls. Subsequent whorls 3, upper surface nearly flat, with a cord at the upper and lower suture, borderecl by a groove; the intermediate zone is yellowish-brown, sculptured by oblique ribs and fine spiral striae in the interstices of the ribs; the cords are crenulate and spotted with white, 2 or 3 white crenules alternating with an equal number of brown ones. Whorls separated by a conspicuous canal, in which the linear suture is to be seen, canal ribbed in the same manner as the upper surface. Last whorl biangular 113 SIPOGA-EXPEDITIE XLIX1 b. 2g by two cords, the upper >'ii<- bordering the canal of the upper whorls, tin- lnwi-r cord is of the same construction as the other one, and the interstice is likewise ribbed, base slightly convex, with 5 strongly crenulate spirals, except the peripheral one and placed at some distance from the latter, being separated by a rather broad, concave, ribbed space, the innermosl cord borders tlic large, pervious, funnel-shaped umbilicus; the base is more or less variegated with white. Aperture subquadrangular, canaliculate where the cords end; columellar margin with a groove in its upper part. Alt. 3 , lat. 9; apert. alt. 21/,, lat. j';, Mill. This species is allied to T dorsuosa, but may immediately be distinguished by the ribbed upper surfai 4. Torinia trochoides Deshayes. Deshayes. Encycl. Meth. Vol. II, p. 160. PHIUPPI. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Solarium, p. 19, PI. 3, fig. 7 [dealbata). TRYON. M.m. of Conch. Vol. IX, p. is, PI. 5, fig. 87, 88. Stat. 215. North point of Kabia-island. Reef. 701 M. Stone. 1 Spec. The specimen is larger than the quoted figures, its altitude is 14 Mill., its diameter 13. Tryon says "Alt. 20 mill.", but his figure is only 13 Mill. high. 5. Torinia madurensis n. sp. PI. XIV, fig. 4. it. 51. Madura-bay. 69 — 91 M. Fine grey sand, coralsand with shells. 1 Spec. Shell small, depressedly conic, white, with traces of a brownish epidermis, nucleus glossy. brown, postnuclear whorls 3'/;,, slightly convex, nearly angular a little above the suture, by the prominence of one of the spirals, of which there are 6 on the penultimate whorl, these spirals are separated by narrow, shallow grooves and crossed by oblique striae or grooves, which render the spirals crenulate, moreover finer spiral striae, more clearly visible in the interstices, and fine growth-striae cross each other. The fifth of the spirals, counted from above is the most prominent one. Base moderately convex, with 9 spirals, of which the inlVaperipheral 2 are prominent; those standing on the basal surface are broader and flat, the innermost is coarsely crenulate. Umbilicus pervious, funnel-shaped. Aperture subcircular, its columellar margin expai and slightly reflected over the umbilicus. Alt. 4 ■'■/„ lat. 6; apert. alt. 2'/,, lat. 21/, Mill. This shell is allied to the preceding species, but it is smaller, broader and has the whorls mi>re conspicuously separated. 6. Torinia mirabilis n. sp. PI. XIV, fig. 6. Stat. 212. 5" 54. .5 S., 120 iij.2 E. Banda Sea. 402 M. Fine grey and green mud. 1 Spec. Shell discoidally depressed, acutely carinated, widely umbilicated, thin, yellowish-brown. umbilicate, smooth, postnuclear whorls 4, forming a convex upper surface of shell; 114 each whorl flat above, connected by a slightly channelled suture. Sculpture consisting of spiral lirae, 8 in number on the last whorls; the infrasutural, the fifth and seventh spirals are more prominent and stronger than the rest; these lirae are crossed by very fine growth-striae and by moderately fine ribs, rendering the lirae crenulate in crossing them, the fifth is even tuber- culiferous in some parts; periphery strongly keeled; keel wavy or denticulate by distant short spines, the spaces between them crenulate; keel flat above, concave below, the rest of base convex untill the umbilicus; base inclusive of the under surface of the keel, sculptured by fine spiral lirae of which the innermost 4 are stronger and granular, especially the spiral bordering the umbilicus, which is tuberculate, the whole base is crossed by radiating striae rendering even the finer lirae crenulate. Umbilicus very large, occupying more than half the diameter, open, leaving the volutions visible, each whorl has a row of large granules along the lower suture and 2 a 3 finer ones crossed by radiating striae. Aperture much broken, probably circular, containing the characteristic operculum. Alt. 3, lat. 9x/4, lat. of umbil. 43/4 Mill. This remarkable mollusk, which is not allied to any species I know, was unfortunately considerably damaged, especially at its basal surface, in consequence I could not make out shape and size of the aperture. It probably deserves a subgeneric name, but it being so incomplete, I have provisionally left it in company with the other t y p i c a 1 species. Section Ptenoglossa. Fam. Scalidae. Scala Klein. 1. Scala Pallasii Kiener. KlEXER. Coq. Viv. Vol. IX, Scalaria, p. 4, PI. 2, fig. 3. REEVE. Conch. Ie. Vol. XIX, Scalaria, fig. 40. TRYON. Man. of Conch. Vol. IX, p. 54, PI. 11, fig. 33. CLESSIN. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Scalaria, p. 59, PI. 16, fig. 2. Stat. 248. Rumah Lusi, North point of Tiur-island. Till 54 M. 1 Spec. The only specimen is fine but not adult. 2. Scala alata Sowerby. SOWERBV. Proc. Zool. Soc. Lond. 1S44, p. 10. REEVE. Conch. Ie. Vol. XIX, Scalaria, fig. 15. Tryon. Man. of Conch. Vol. IX, p. 55, PI. 11, fig. 40. CLESSIN. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Scalaria, p. 20, PI. 3, fig. 5. Stat. 2. Madura-strait. 56 M. Grey mud. 1 Spec. Stat. 116. West of Kwandang-bay-entrance. 72 M. Fine sand with mud. 3 Spec. The specimens from Stat. 116 are quite white, perhaps bleached. The whole party is young. "5 \la replicata Sowerby. I ond. 1 844, p. 11. Ri : Vol. XIX, S( alaria, fig. in. Man. of Conch. Vol. IX, p. 56, PI. 11. fig. 43. CLESSlN. Martini-Chemn. Conch. Cab. Ed. II. Vol. II. Scalaria, p. 4, PI. 2, fig. 2. St.it. {kil, Sulu-archipelago. 13 M. Lithothamnion-bottom. 1 Spcc. .si;. 'Halmahera Sea. 411 M. Coarse sand. 2 Spcc. .t. 313. Dar I tr, Saleh-bay. CJp to 36 M. Sand, coral and mud. 1 Spcc. The specimen from Stat. 109 is nearly too bad for identification, but lias much resem blance with those from Stat. 159, which are however also broken and dea<l : this may account eptional great depth. 4. Scala tenuicostata Sowerby. VERBY. Thes. Conch. Vol. I, PI. 34, fig. 76. REEVE. Conch. Ie. Vol. XIX, Scalaria. fig. 31. TRYON. Man. of Conch. Vol. IX, p. 56, PI. II, fig. 44. 3SIN. Martini-Chemn. Conch. Cab. Ed. II, Vol. Il, Scalaria, p. 10, PI. 3, fig. 8. Stat. 51. Madura-bay. 69 — 91 M. Fine grey sand. 1 Spec. 5. Scala deifica Melvill. Melvill. Journ. of Conchology. Vol. X, p. 343, PI. 7, Hg. 4. Stat. 59. Western entrance, Samau-strait. 390 M. Coarse coralsand with small stones. 1 Spcc. Though the specimen seems not to be adult, as it has only a Iength of 81/, Mill. instead of 11. and at least one whorl less than the described type, it is a very beautiful shell and im doubt identical, as Mr. Melvill had the kindness to compare it with his type. 6. Scala lyra Sowerby. Sowerby. Proc. /ooi. Soc. Lond. 1S44, p. 13. REEVE. Conch. Ie. Vol. XIX. Scalaria, fig. 23. TRYON. Man. of Conch. Vol. IX, p. 59, PI. 1.?. fig. 69. 5S1N. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Scalaria, p. 22, Tl. 6, lig. 4. Stat. 95. ; 4S/.7 X.. 110 40.02 K. Sulu Sea. 522 M. Stony bottom. 1 Spcc. The only specimen which was very young and already broken, unfortunately has been smashed to pieces in extracting the cork from the tube containing tin- shell. 7. Scala Tydemani n. sp. PI. XV, fi.g. 1. Stat. 315. Sailus Besar, Paternosler-islands. Up to 36 M. Coral and Lithothamnion. 1 Spcc. jhell rather small. pyramidal, with a very narrow umbilicus, thin, llesh-coloured, with r whorls. Whorls 6, nucleus wanting, these whorls air very convex, nearh TO, smooth, with only a few irregular impressed striae, suture very deep; the whole shell is crossed by white ribs, the majority of which is rather thin, slightly lamellose towards the upper part of each whorl, but forming no spines; under a strong lens the ribs are finely crenulate at their anterior side ; a few of the ribs are stronger, forming varices at irregular intervals, one borderino- the aperture, but also the preceding rib is thickened; the number of ribs is 29 on the last whorl. Aperture oval, with a thick, continuous, white lip, slightly refiected over, but not closing the umbilicus. Interior of aperture flesh-coloured, white towards the margin. Alt. 88/4, lat. 41/,; apert. alt. 3, lat. 21/. MUI. This fine species may be allied to 5. clementina Grat., and bulbulus Sow. but is more elongate and easily recognized by its violaceous colour. 8. Scala fragilissima n. sp. PI. XV, fig. 3. Stat. 17S. 2°4o'S., I23°37'.5E. Ceram Sea. S35 M. Blue mud. 2 Spec. Shell subperforate, pyramidal, very thin, transparent, yellowish-white, nucleus wanting, remaining whorls probably 7 or 8 (both specimens incomplete), very convex, obtusely angular a little above the periphery, with a very deep suture ; sculpture consisting of spiral ribs, about 1 5 in number on the penultimate whorl, and thin, undulating ribs, crossing the spirals and giving a cancellated appearance to the shell ; these radiating ribs are, if well preserved, delicately spinose at the upper part and their crest as well as the whole rib is undulated, these undulations corresponding to the spiral ribs; the ribs are subequal, becoming only a little stronger with age, their number is about 23 on the last whorl, which is slightly angular, but has no basal rib. Aperture incomplete, probably nearly circular, only faintly angular above, its right margin thin (youngr), its columellar margin slightly refiected over and nearly covering the umbilicus, which in the largest specimen is still circumscribed by a thin rim. Alt. (of largest specimen) g7/K, lat. 33/4; apert. lat. 2 MUI. Though the specimens are rather incomplete, I think they are characteristic enough, to deserve a name and description ; they resemble in shape 5". formosissima, from the Azores, but have still much more convex whorls and much finer and more elaborate sculpture; in this respect they resemble 5. undulatissima Sow., but that species is only very minutely spirally striate and much broader in proportion to its length. 9. Scala (Clathrus) pnlchcrrima Sowerby. SOWERBY. Proc. Zool. Soc. Lond. 1S44. Reeve. Conch. Ie. Vol. XIX, Scalaria, fig. 67 (Spec. 68). Tryon. Man. of Conch. Vol. IX, p. 68, PI. 14, fig. 32. CLESSIN. Martini-Chemn. Conch. Cab. Ed. II, Vol. II, Scalaria, p. 34, PI. 10, fig. 11 (figured as catanuensis). Stat. 51. Madura-bay. 69 — 91 M. Fine grey sand, coarse sand with shells and stones. 1 Spec. As stated by Tryon, the figure and description of Reeve don't correspond; the figures ol 5. pulcherrima and S. catanuensis having been changed on the plate. Clessin, whose 117 monograph seems \<> 1"- in most instances a bad copy and translation of that of Reeve, has overlooked that mistake. 10. Sm/a 'a n. sp. PI. XV, fig. 2. Stat. '.( S., 1 18 15'.2E. I M. Fine grey mud. 2 Spec. Shell subperforate, pyramidal, thin, whitish; nucleus wanting, remaining whorls 8, very convex, obtusely angular at the shoulder, slightly disunited, nearly smooth, but with a few te spiral striae and fine growth-striae; the whorls are crossed by thin, slightly reflected in number on the last whorl; these ribs are spinous at the shoulder, their margin is serrulate serrulations may be natural or caused by friction) they are practically equal, none of them being varix-like; base of shell regularly rounded. Aperture circular, right margin thin (young? it> columellar margin broadly reflected over the perforation and (pjite covering, but probably not closing it. Alt. 141/.-. bit. 5 Mill.; aperture of a specimen long 9'/-, Mill., 21/., Mill. This species resembles in shape the preceding one, but it is quite different by its nearly smooth interstices of the ribs, which are themselves more simple, being undulate in S. fragilissima. 11. Scala Clathrus) Melvilli n. sp. PI. X1Y, fig. 9. Stat. 114. Kwandang-bay-entrance. 75 M. Hard sand, very line. 1 Spec. Shell pyramidal. imperforate, very thin, transparent, white. Whorls 9, of which 3 smooth nuclear ones. Postnuclear whorls very convex, slightly shouldered, with a very deep suture ; upper and basal part of each whorl smooth, median part with 3 thin spiral ribs in the inter- stices of the radiating ribs, which are thin, lamellose, flexuous, with an auricle at the suture and another at the shoulder, moreover an undulation at the peripheral part, and a second one near the base of each whorl; in the upper whorls the ribs are more simple. Aperture circular, with a broadly expanded margin, formed by the last rib, of which there are 15 on the last whorl; columellar margin narrowly reflected, accompanied at the place of the umbilicus by a lamellose rim. Alt. 5' . lat. y ; apert, i1/, .Mill. in diameter. This species resembles .S". malcolmensis Melvill (Memoirs and Proc. Manch. Lit. and Phil. Soc. Vol. 42, 1S9S, p. 20, PI. 7, lig. 21. but the ribs of the new species are much more elaborate, being flexuous. 12. Scala f Opa/ia j lamellosa Lamarck. LAMARCK. An. s. veil. Ed. II. Vol. XIX. p. 73. KlENER. ( oq. Viv. Vol. IX. Scalaria, p. 10. PI. 3, fig. -. TRYON. Man. <.f Conch. Vol. IX, p. 74. PI. 15. fig. 83, 84, jj. Stat. ii'». West "f Kwandang-bay-entrance. 72 M. Fine sand with mud. 1 Spec. [52. Wunoh-bay, X. \Y. coast "f Waigeu-island. $2 M. Lithothamnion-bottom. 1 Spec. the name perplexa Pse. would bc the most fitting one lor this shell, as really 1 1 227 it is very perplexing to see how the opinion of authors differs in the appreciation of the limits of the species or varieties more or less allied to S. lamellosa. I have foliowed Messrs. Melvill and Standen (Proc. Zool. Soc. Lond. 1901, p. 356), who have made use of the familiar name lamellosa, Mr. Melvill being in 1903 still of the same opinion (Journ. of Conch. Vol. 10, p. 348). 13. Scala (Op al ia) sp.? Stat. 45. 7°24'S., u8°i5'.2E. Flores Sea. 794 M. Fine grey mud. 1 Spec. This species may be new, but it is though large (nearly 20 Mill. in length), too much worn, with broken aperture, consequently not recognizable, so I thought it better not to describe a species, without a knowledge of the true colour, of sculpture and aperture. 14. Scala (Opalia) hutnerosa n. sp. PI. XIV, fig. 7. Stat. 241. 2°24'.3S., I29°49'.3 E. Banda Sea. 1570 M. Dark sand with small stones. 1 Spec. Shell elongately pyramidal, imperforate, moderately thin, white; nucleus wanting; remaining whorls 11, convex, slightly contracted below the deep suture, there shouldered or angular; sculpture consisting of low spiral ridges, about 1 3 on last whorl, of which the basal one forms the rib characteristic for the subgenus, a small space above that rib and a larger one below the suture are free of ridges ; the whorls are crossed by strong ribs, 1 3 in number on the last whorl, not quite reaching the upper suture; these ribs are angular at the shoulder and less so below, they are crossed by the ridges, which are however less sharp on the ribs, perhaps on account of friction ; the interstices have fine, hairlike, elevated striae, which are also present on the sides of the ribs. Base with traces of ridges and with the hairlike striae, but in a much fainter degree. Aperture subcircular, slightly angular above, below and fainter at the end of the shoulder and of the basal rib. Columellar margin reflected over the umbilical region, outer margin thin (juveniler). Alt. 15, lat. 41/,.,; apert. alt. 21/*, lat. 2 Mill. I know no described species of Opalia, to which this new form is allied. 15. Scala (Opalia) Sibogae n. sp. PI. XIV, fig. 8. Stat. 159. o°59'.iS., I29°48'.8E. Halmahera Sea. 411 M. Coarse sand. 1 Spec. Shell elongately pyramidal, imperforate, solid, corneous; nucleus wanting; remaining whorls io1/.,, convex, with a deep suture, slightly shouldered; sculpture consisting of 3 strong spiral ridges and a few spiral striae in the interstices, crossed by strong ribs, 12 on last whorl, angular above, when the upper spiral crosses the ribs, being slightly nodulous by the intercrossing of the strong spirals; some of the ribs have the appearance of varices, a. o. that next the aperture; last whorl with 4 spirals, of which one is the usual basal one; base with a few very faint spirals; the whole shell, especially the base is covered with very fine growth-striae. Aperture 119 2 28 oval, slightly angular above, right margin slightly broken, probably varicose in the adult sh< -11 . columellar margin thickened below, refl< over the umbilical region. Alt. 1 i. lat. 3 ; apert. alt. 2. lat. i Mill. This species has superficial resemblance with the preceding one, luit lias a much coarser sculpture and is much k-ss shouldered. Nierstraszi n. sp. i'.i S., i-'i 48'.8 E. Halmahera Sea. 411 M. Coarse sand. 1 Spec. Shell small, pyramidal, imperforate, solid, white: nucleus wanting; remaining whorls 7 moderately convex, with a distinct but no deep suture; sculpture consisting of impressed spiral striae and fine radiating ones over the whole surface, if not rubbed of; ribs strong, thick, ed by the spiral striae. ten on last whorl; the last very thick rib bordering the aperture. il rib of last whorl strong; base slightly excavated, sculptured with faint spiral striae, crossed bj the growth-striae. Aperture circular with a nearly smooth, rather thick internal lip. bordi on the right and part of basal margin, by a broadly expanded flat varix, with the same sculpture of the outer surface of shell. Alt. 61/,, lat. incl. perist. V ,: diam. of apert. i'/,; Mill. I know no species allied to this beautifully sculptured shell. 17. Scala (Cirsotrema) sp. Stat. 153. o°3'.8N., I30°22'.3E. North off Waigeu-island. 141 M. Fine and coarse sand with dead shells. 2 Spec. Both specimens are young, they have some resemblance with the upper whorls of S. Kieneri Tap. Can. but are different in their sculpture, which is very fine; as even the apertures are incomplete, I have abstained myself from naming and describing them, though they probably ng to a new species. 120 SUPPLEMENT. Some sheets of the second part of this publication had been printed, when I received a box of shells, found amongst corals of the "Siboga" materials; though this box contained only common species, there were a few not yet enumerated in the first two parts on Gastropoda. I have mentioned them in this supplementary note, and added a few localities of species already dealed with, but I have omitted to mention such cases, when I found one or a few specimens of species recorded in the bulk of the work, from the same localities. PART I. pag. 23. To N° 1, Turbo pctholatus Lin. add: Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 2 adult Spec. PART II. pag. 110 (2). To N° 1, Aquillus pilearis Lin. add: Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 2 Spec. Stat. 234. Nalahia, Nusa-Laut-island. Reef. 2 Spec. pag. iii (3). To X" 3, Aquillus rubccula Lin. add: Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 3 Spec. after sp. 4 add : \a. Aquillus (Lampusia) lotorius Linné. LlNNÉ. Syst. Nat. Ed. X, p. 749, Nn 457. RUMPH. Amb. Rariteitkamer, p. 85, PI. 26, fig. B. KlENER. Coq. Viv. Vol. VI, Triton, p. 11, PI. 9, fig. 1. Reeve. Conch. Ie. Vol. II, Triton, fig. 9. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. pag. 119 (11). To N° 9, Bursa granifera Lam. add: Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 1 Spec. 121 SIBOGA-EXPEDITIE XI.IX1/'. 3° iji | 1 3 | before N i . add : ru/a Linné. LlNNÉ. Syst. Nat. Ed. X. p. 736, N° 385. Mm. Amb. Rariteitkamer, p. 8o, PI. 23, fig. B, ( , Ki> Viv. Vol. VII, Cassis, p. 15. PI. 7, fig. 12, 13. Conch. [c. Vol. V, Cassis, fig. 20. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spcc. pag. 1. I o N " 4. Cassis vibex Lin. add: Stat. [93. Sanana-bay,' East coast of Sula Besi. Keef. 1 Spec. [23 1 5 ». To var. erinacea Lin. add: Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. IN 5, Cassis torquata Reeve, add: Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. 125 (17). To N" 1, Doliuiii olearium Brug. add: Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 1 Spcc. after X" 3. Dolium fasciatum Brug. add: 30. Dolium perdix Linné. Linné. Syst. Nat. Ed. X, p. 734, N° 37S. Rl MPH. Amb. Rariteitkamer, p. 90, PI. 27, fig. C. KlENER. Coq. Viv. Vol. VII, Dolium. p. 4. PI. 5, fig. 9. REEVE. Conch. Ie. Vol. V, Dolium, fig. 9. Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 1 Spec. Stat. 225. South point of South Lucipara-island. Reef. 1 Spec. 126 18). To N° 4. Dolium pomum Lin. add: Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 1 Spec. after Cypraea Lin. add: Cypraea scurra Chemnitz. Chemnitz. Conch. < ab. Ed. I. Vol. X. p. 103, PI. 144, fig. 1338. KlENl i . ' oq. Viv. Vol. I, p. 107, PI. 5, fig. 2- PI. 50, fig. 1. Reeve. Conch. Ie. Vol. III. Cypraea, fig. 45. Weinkai ff. Martini-Chemn. Conch. Cab. Ed. II. Vol. V, Cypraea, p. 19, PI. 4, fig. 8, 9; PI. 6, fig. 3, 4. I >-.. Man. of Conch. Vol. VII, p. [65, PI. 2, tig. 19 — 21. Stat. 96. South- ol i 1-bank, Sulu-archipelago. 15 M. Lithothamnion-bottom. 1 Spec. 1 22 pag. 127 (19). To N" 2. Cypraea carneola Lin. add: Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 2 Spec. To N" 3. Cypraea talpa Lin. add: Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 2 Spec. pag. 128 (20) after N" 9. Cypraea caurica Lin. add: ga. Cypraea crzienta Gmelin. Gmelin. Syst. Nat. Ed. XIII, p. 3420. RUMPH. Amb. Rariteitkamer, p. 115, PI. 38, fig. O. KlENER. Coq. Viv. Vol. I, p. 157, PI. 27, fig. 2 (variolaria). REEVE. Conch. Ie. Vol. III, Cypraea, fig. 38. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, p. 35, PI. 10, fig. 9—12 {variolaria). Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. 9 b. Cypraea manritiana Linné. Linné. Syst. Nat. Ed. X, p. 721, N° 299. RUMPH. Amb. Rariteitkamer, p. 114, PI. 38, fig. E. KlENER. Coq. Viv. Vol. I, p. 103, PI. 39, fig. i; PI. 40, fig. i; PI. 47, fig. 1. Reeve. Conch. Ie. Vol. III, Cypraea, fig. 1. Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Cypraea, PI. 6, fig. 7—9, PI. 21, fig. 2, 6, 7. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 1 Spec. pag. 131 (23). To N° 14. Cypraea tigris Lin. add: Stat. 313. East of Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Spec. To N° 15. Cypraea vitclltts Lin. add: Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 2 Spec. To N° 16. Cypraea lynx Lin. add: Stat. 193. Sanana-bay, East coast of Sula Besi. Reef. 1 Spec. Stat. 234. Nalahia-bay, Nusa-Laut-island. Reef. 2 Spec. 123 PLATE X. Fig. \a,b. Gyrineum perca Perry, var. aculeata n. var. c. larger specimen. Fig. 2. Oocorys Weberi n. sp. Fig. 3. Oocorys elongata n. sp. Fig. 4. Morio granulata n. sp. 5. Mono lineata n. sp. Fig. 6. Mono Aïcocki Smith. Siboga-Expeditie. XLIX. i. M. M. Schepman , Prosobranchia ■x . C. Dumont del. Fa. V. W. M. Trap impr. 1'LATE XI. i. Trivia abyssicola n. sp. Fig. 2. Trivia paucicostata n. sp. Fig. 3. Trivia sibogae n. sp. «a sibogae forma minor. 5. Rostellaria Powisit Recl., var. abyssicola n. var. Kig. 6. Cerithium Tydemani 11. sp. <\ Sculpture. I 7. Cerithiopsis Versluysi 11. <p. Fig. 8. Triphora Versluysi n. sp. c. Sculpture. 9. Triphora Schmidti n. sp. r. Sculpture. I .10. Amphiperas roseomaculatum n. sp. Fig. 11. Turritella mandata Reeve, var. ornata n. var. Siboga-Expeditie. XI. IX. i. M. M. Schepman, Prosobranchia. XI «^H Fig. i — 5, 10, ii, C. Dumont, fig. 6 — 9 de Graaf del. Fa. P. W. M. Trap impr. PLATE XII. I i. Argyropeza Melvilh n. sp. hotropis orientalis n. sp. 5. Probably belongs to Trichotropidae. Fig. 4. Seguenzia Melvilli n. sp. ;. Seguenzia Dautzenbergi n. sp. uenzia Sykesi n. sp. Fig. ; ruenzia costulifera n. sp. 8. Melania salibabuensis n. sp. </. large, b. smaller specimen. 9. Rissoa kwandangensis n. sp. Fig. 10. Cyclotus kangeanus n. sp. a. light-coloured, £ — </. darker specimen. 11. Mitrularia costifera n. sp. Siboga-Expcditic. XLIX. i. M. M. Schepman ,, Prosobranchia. XII 3 \ ^ <■ +■ MB 1 +. 4 -^ •ffFti** " V S9^t^ , «t' ':; s f«S* rfrfW ---£*s . r ( jtut'. Fig. 1 — 3; S, 10 ile Graaf; 4—7, 9, n Dumont del. , , 31. - / ' • • '• + u;\ Fa P. W. M. Trap impr. 1MATE XIII. i. Xenophora gigantea n. sp. a. latcral view (obliquc). d. operculum. l-"ig. 2. Natica ntbulosa n. sp. Fig- 3- Natica crassa n. sp. 4. Natica supraornata n. sp. . 5. Natica faba n. sp. Sibogar-Expeditie. XLIX. i. M. M. Schepman, Prosobranchia. XIII l:^f m .«- :"."i 1 2 . m -' L ^ \ C -9 3ï^ & x „É ;^i y "\ ƒ• ^ * 'V- H ^ Kr-y •>)r ■ $.-. ■V Fig. I de Graaf, 2 — 5 Dumont del. Fa P. W. M. Trap impr. PLATE XIV. Fig. i. Natica simplex n. sp. Fluxina marginata n. sp. a. c. small, l>. large specimen. Fluxina trochiformis n. sp. Ton ma madurensis n. sp. Torinia costata n. sp. Tor ni ia mirabilis n. sp. Scala humerosa n. sp. Scala sibogae n. sp. Scala Melvilli n. sp. Fig. 2. Fig. 3- Fig. 4- 5- Fig. 6. Fig- 7- Fig. 8. 1 i 9- Siboga-Expeditie. XLIX. i. M. M. Schepman, Prosobranchia. XI 1 ' ^-£Si> 1. 2. ■ ~&> '\ Fig. 1 — 4, 7-9 C. Dumont; fig. 5, 6 de Graaf del. Fa P. W. M. Trap impr. PLATE XV. i. Scala Tydemani n. sp. I ig. 2. S<ti/ii abyssicola n. sp. <?. smaller, b. larger specimen. \la fragilissima n. sp. a. smaller, b. larger specimen. 4. Scala Nierstraszt n. Fig. 5. Rimella Tyleri Ads. <?. larger, /». smaller specimen. Fig. 6. Teeth of radula of Amphiperas philippinarum Sou. (see p. 144). 7. Teeth of radula of Gyrineum cuspidatum Rve. 8. Teeth of radula of Amphiperas .. \(N.i Rve. (see p. 144). Fig. 9. Teeth of radula of Amphiperas secale Sow. (see p. 145). Fig. 10. Teeth of radula of Calpurnus verrucosus Lin. Fig. 11. Teeth of radula of Argyropeza divina Melv. & Stand. Fig. 12. Teeth of radula of Seguenzia Melvilli n. sp. Sibogctr-Expeditie. XLIX. i. M. M. Schepman, Prosobranchia. XV m I & fè 900 Fïg. 1—6. C. Dumont, fig. 7—12 M. M. S. del. Fa P. W. M. Trap impr. PLATE XVI. Fig. i. Teeth of radula of Rimella Tylen \ ii of radula of Rostellaria Powisii Recl. 5. Teeth of radula ^{ species probably belongin . to rrichotropidae. Teeth of radula of Quoyia dec, Quoy & Gaimard. Siboga-Expeditie. XLIX. i. M. M. Schepman, Prosobranchia. XVI M. M. S. del. Fa P. W. M. Trap impr. XyZX-JLlUU ,_ '.' ' ' if ■ ■ tit- ■ RÉSULTATS DES EXPLORATIONS ZOOLOGIQUES, BOTANIQUES, OCEANOGRAPHIQUES ET GEOLOGIQUES ENTUEPRISES AUX tNDES NÉERI.ANDAISES ORIENTAI.E3 Cll 1899 — 1900, a bord du 8IBOGA SOUS LE COMMANDEMENT DE G. F. TYDEMAN PUBLIÉS PAR MAX W E Iï E R ('hef Je 1'expédition. *I. *II. *I11. IV. *lV6is. V. *VI. VII. *VIU. *IX. *x. *XI. *xir. •XIII. XIV. XV. *XVI. XVII. XVIII. XIX. *xx. *XXI. XXII. XXIII. XXI Yi. XXIV2. *XXV. *XXVI. *XXVI4w. XXVII. XXVIII. XXIX. *xxx.' *XXXI. XXXII. xxxm. *XXXIV. XXXV. * XXXVI. XXXVII. XXXVIII. XXXIX. *XL. XLI. *XLII. *XLIII. *XLIV. *XLV. XLVI. *XLVII. *XLVIII *XLIX'. *XLTX2. *L. *LI. *L1I. LUI. *LIV. LV. *LVI. LV1I. LVIII. LIX. *LX. *LXI. LXII. LXIII. LXIV. LXV. LXVI. Introductiuu et descriptiou de L'expédition, Max Weber. Le bateau et sun équipement scieiitilique, G. F. Tydeman. Ite'sultats hydrographiques, G. F. Tydeman. Foramiuifera, F. W. Winter. Xenophyophora, F. E. S c h u 1 z e. Radiolaria, M. Hartman n. Porifera, G. C. J. Vosmaer et I. Ijima '). Hydropolypi, A. Billard. Stylasterina, S. J. Hickson et M11" H. M. England. Siphonophora, Miles Lens et van Riemsdijk. Hydronicdusae, O. Maas. Scyphoruedusae, O. Maas. Ctciiophora, MU« F. Moser. Gorgonidae, Alcyonidae, J. Versluys, S. J. Hickson et Pennatulidae, S. J. Hickson. [O. C. Nutting -■). Actiuiaria, P. Mc Murrich. Madreporaria, A. AlcocK ') et L. Uödcrlein. Antipatharia, A. J. van Pesch. Turbellaria, L. von Gr af f et R. R. non St timmer. Cestodes, J. W. Sp engel. Nematomorpba, H. F. Nierstrasz. Chaetognatha, G. H. Fowler. Nemert.ini, A. A. W. Hub recht. Myzostomidae, R. R. von Stummer.. Polychaeta errautia, R. Horst. Polychaeta se.dentaria, M. Caullery et F. Mesnil. Gephyrea, C. Pb. Sluiter. Enteropueusta, J. W. Spengel. Ptcrobranchia, S. F. Har nier. Brachiopoda, J. F. van Bemmelen. Polyzoa, S. F. H arm er. Copcpoda, A. Scott. Ostracoda, G. W. Muller. Cirrhipedia, P. P. C. Hoek '). Isopoda, H. J. Hansen. Amphipoda, Ch. Pérez. Caprellidae, P. May er. Stomatopoda, H. J. Hanseu. Cumacea, W. T. Cal man. • Schizopoda, H. .T. Hansen. Sergestidae, H. J. Hansen. Decapoda, J. G. de Man. Pantopoda, J. C. C. Lom au. Halobatidae, J. Th. Ou de mans. Criaoidea, L. Döderlein') et C. Vauey. Echinoidea, J. C. H. de Me ij e re. Holothurioidea, O Ph. Sluiter. Opbiuroidea, R. Kohier. Asteroidea, L. Döderlein. Solenogastres, H. F. Nierstrasz. Chitonidae, H. F. Nierstrasz. Prosobranchia, M. M. Schep man1). Prosobranchia parasitica, H. F. Nierstrasz et M. M. Opisthobranchia, R. Bevgh. [Sehépman. Heteropoda, J. J. Tesch. Pteropoda, J. J. Tesch. Lamellibranchiata. P. Pelseneer et Ph. Dan tzenberg. Scaphopoda, M"e M. Boissevain. Cephalopoda, L. J o u b i n. Tunicata, C. Ph. Sluiter et J. E. W. Ihle '). Pisces, Max Weber. Cetacea, Max Weber. Liste des a'gues, Mme A. Weber. Halimeda, MUe E. S. Barton. (Mme E. S. Gepp). Corallinaceac, Mme A. Weber et M. F os 1 ie. Codiaceae, A. et Mme E. S. Gepp. Dinoflagellata. Coccosphaeridae, J. P. Lotsy. Diatomaceae, J. P. Lotsy. Deposita marina, O. B. Böggild. Résultats géologiques, A. Wichmann. Siboga-Expeditie THE PROSOBRANCHIA OF THE SIBOGA EXPEDITION BY M. M. SCHEPMAN Bosch en Duin near Utrecht (Holland) PART II TAENIOGLOSSA AND PTENOGLOSSA With 7 plates ^. Tm^ Monographie XLIXV; of: UITKOMSTEN OP ZOOLOGISCH, BOTANISCH, OGEANOGRAPHISGH EN GEOLOGISGH GEBIED verzameld in Nederlandsen Oost-Indië 1899 — 1900 aan boord H. M. Siboga onder commando van Luitenant ter zee ie kl. G. F. TYDEMAN UITGEGEVEN DOOR Dr. MAX WEBER Prof. in Amsterdam, Leider der Expeditie (met medewerking van de Maatschappij ter bevordering van het Natuurkundig Onderzoek der Nederlandsche Koloniën) BOEKHANDEL EN DRUKKERIJ NOOIUIt.fcf E. J. BRILL LEIDEN -ii£i - n imiiiuiii hii . - 1 1 1 1 U 1 : ■ . d 1 u 1 u 11111 1 ■ .:! Ml .11 ...l! ■ inim iiiiiiiM- m mi . . ■■ ... Publié Septembre 1909 * Les numéros avec un astérique ont déja paru; ceux marqués 1) seulement en partie Voor de uitgave van de resultaten der Siboga-Expeditie hebben bijdragen beschikbaar gesteld: De Maatschappij ter bevordering van het Natuurkundig Onderzoek der Nederlandsche K( iloniën. Het Ministerie van Koloniën. Het Ministerie van Binnenlandsche Zaken. Het Koninklijk Zoologisch Genootschap > Natura Artis-Magistra" te Amsterdam. De »Oostersche Handel en Reederij" te Amsterdam. De Heer B. H de Waal Oud-Consul-Generaal der Nederlanden te Kaapstad. M. B. te Amsterdam. CONDITIONS GÉNÉRALES DE VENTE. i°. L'ouvrage du „Siboga" se composera d'une série de monographies. 2°. Ces monographies paraïtront au fur et a mesure qu'elles seront prêtes. 3°. Le prix de chaque monographie sera différent, mais nous avons adopté comme base générale du prix de vente: pour une feuille d'impression sans fig. flor. 0.15; pour une feuille avec fig. flor. 0.20 a 0.25; pour une planche noire flor. 0.25 ; pour une planche coloriée flor. 0.40 ; pour une photogravure flor. 0.60. 40. Il y aura deux modes de souscription : a. La souscription a l'ouvrage complet. b. La souscription a des monographies séparées en nombre restreint. Dans ce dernier cas, le prix des monographies sera majoré de 25 °/0. 50. L'ouvrage sera réuni en volumes avec titres et index. Les souscripteurs a l'ouvrage complet recevront ces titres et index, au fur et a mesure que chaque volume sera complet. Déia paru: Irix: i' 1 i\! M \\ i\ C. Ph. Sluiter. 1 'i- Holothurien di i Expedition. Mii to rafeln. f 6. — f 7.50 E. S. Barton. The genus Halimeda. With 4 plates [.80 . Max Weber. Introduction et dcscription de l'expéditions Avec Liste des - 6.75 . 9. (}. F. Tydeman. I '< sci iption of thé -«hip and appliances used for si ientific Wit h 3 plates .uiil illustrations 2. , CLV1I) H. F. Nierstrasz >f the Siboga-Exp. With 6 plati . 4.90 I !.: XIII J. Versluys. Die Gorgoniden «Ier Siboga-Expedition. I. I t 170 Figuren \xn I • xt , 3. — , 3.75 1 •■•■ A. Alcock. Report on the Deep-Sea Madreporaria of the Sibo Expedition. With ; plat< 4.60 , 5.75 Livr. XXV} C. Ph. Sluiter. Die Sipunculiden und Echiuriden der Siboga-Exp. Mit In und 3 Figuren im Text. ... , 3.— . j.75 G. C. J. Vosmaer aod J. H. Vernhout. The Porifera of the Sibo «dition. I. The genus Placospongia With 5 plates „ 2.40 „ 3. — ie* Livi Cl) Otto Maas. Die Scyphomedusen der Siboga-Expedition. Mit 12 Tafelt». „ 7.50 , 9.50 11 1 1. XII) Fanny Moser. Die Ctenophoren der Siboga-Expedition.. Mit 4 Tafeln. , 2.80 , 3.50 XXXIV P. Mayer. Die Caprèllidae der Siboga-Expedition. Mit 10 Tafelft. , 7.80 „ 9.75 111 G. F. Tydeman. Hydrographic results of the Siboga-Expedition. With harts and plans and 3 charts of depths „ 9. — „ 11.25 \1.1II) J. C. H. de Meijere. Die Echinoidea der Siboga-Exp. Mit 23 Tafeln. . 15. — „ 18.75 XLVa) René Koehler. Ophiures de, L'.Expéditïon du Siboga. [« Partie. Ophiures de Mer profonde. Avec 36 Plaaches n 16.50 „20.50 Lil) J. J. Tesch. The Thecosomata and Gymnosomata of the Siboga- icdition. With 6 plates „ 3.75 „ 4.70 LVIa) C. Ph. Sluiter. Die Tunicaten der Siboga-Expedition. 1. Abteilung. Die socialen und holosomen Ascidien. Mit 15 Tafeln „ 6.75 „ 9. — LXI) A. Weber- van Bosse and M. Foslie. The Corallinaceae of the Siboga- Expedition. With 1 and 34 texrüguses ... „ 12.50 „ 15.50 M VIII Sydney J. Hickson and Helen M. England. The Stylasterina of the Siboga Expedition. With 3 plates „ 1.50 , 1.90 20c Livr. (Monogr, XLY1II H. F. Nierstrasz. Die Chitonen der Siboga-Exp. Mit S Tafeln. „ 5. — „ 6.25 21c Livr. (Monogr. XIA'vj René Koehler. Ophiures dê l'Expédition du Siboga. .' Partie'. Ophiures littorales. Avec 18 Planches '. „ 10.25 n l2-75 Sidney F. Harmer. The Pterobranchia of the Siboga-Expeditiop, with an account of other species. With 14 plates and 2 text-fïgures • . , 6.75 „ 9. — livr. Monogr. XXXVI) W. T. Calman. The Gumacea of the Siboga Expedition. With J plates and 4 text-figures „ 1.80 „ 2.40 24c Livr. (Monogr. LVItf) C. Ph. Sluiter. Die Tunicaten der Siboga-Expedition. Supplement zu der I. Abteilung. Die socialen und holosomen Ascidien. Mit 1 Tafel. n — .75 „ 1. — I.) Rud. Bergh. Die Opisthobranchiata der Siboga-Exped. Mit 20 Tafeln. „ 11.25 » 14.10 26"-- Liv! X) Otto Maas. Die Craspedoten Medusen der Siboga-Exp. Mit 14 Tafeln. , 9.25 , 12.50 r. XIII a) J. Versluys. Die Gorgoniden der Siboga-Expedition. II. Die Primnoidae. Mit [O Tafeln, 178 Figuren im Text und einer Kartc . . . „ 12.50. „ 16.75 28c Livr. Monogr. XXI) G. Herbert Fowler. The Chaetognatha of the Siboga Expedition. With 3 plates and 6 charts n 4.20 „ 5.25 Monogr. Lij J. J. Tesch. Die llcteropoden der Siboga-Expedition. Mit 14 Tafeln. „ 6.75 „ 9. — 30e Livr. [Monbgn XXX 1 G. W. Muller. Die Ostracoden der Siboga-Exped* Mit 9 Tafeln. „ 3.50 „ 4.4.0 3ic Livi pgr. IViis] Franz Eilhard Schulze. Die Xenophyophoren der Siboga-Exped. Mit 3 Tafeln „ 2.40 , 3.— 32c Livr. (Monogr. LIV) Maria Boissevain. The Scaphopoda of the Siboga Expedition. With 6 plates and 39 textfigures , 4.80 „ 6. — 33c Livr. [Monogr. XXVI) J. W. Spengel. Studiën über die Énferopneusten der Siboga-Exp. Mit 17 Tafeln und 20 Figuren im Text „ 14. — „ 17.50 34c Livr. [Monogr. XX) H. F. Nierstrasz. Die Nematomorpha der Siboga-Exp. Mit 3 Tafeln. , 2.80 n 3.50 35' -lil Sydney J. Hickson und J. Versluys. Qie Aicyoniden der Siboga- ped. I. Coralliidae, II. Pseudocladochonus Hicksoni. Mit 3 Tafeln und iöFiguréiiim Text. „ 2.20 „ 2.75 Livr. [Monogr. XXXla) P. P. C. Hoek. The Cirripedia of the Siboga Expedition. .\. Cirripedia pedunculata. With 10 plal „ 5.40 „ 6.75 Livr. Monogr. XLIfa) L. Döderlein. Die gestielten Crinoiden der Siboga-Expedition. Mit I ' In und \: Figuren im Text „ 8. — „ 10. — (Mono 1 IX Albertine D. Lens and Thea van Riemsdijk. The Siphonophores dition. With 24 plates and 52 textfigures „ 13.50 „ 16.75 XLIX'a) M. M. Schepman. The Prosobranchia of the Siboga Expedjtion. t I. Rhipidoglossa and Docoglossa, with an Appendix by Prof. R. &ERGH. With 9 plates and 3 textfigures v 4.S0 „ 6. — : J. C. C. Loman. Die Pgntopoden der Siboga-Expedition. Mit 15 n im 'I „ 6.25 , 7.S0 J. E. W. Ihle. Di< Appendicularien der Siboga-Expedition. Mit 4 im Text „ 4.80 , 6. — M. M. Schepman und H. F. Nierstrasz. Parasitische Proso- ' ■ Tafeln „ 1.20 ., 1.50 M. M. Schepman. I brSnchia of the Siboga Expedition. ;a. With 7 plates , 4.50 . 5.60 I flor. = Mrk 1.70 = I sli. 8 <1. = frs 2.12 en cliiflïcs BUTOOi