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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, 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.

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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.

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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, 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, 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.

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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.

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.

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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.

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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, 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, 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, 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, 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. 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. 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, 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, 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, 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, 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, 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$, 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, 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, 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, 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.

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<

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, 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, 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, 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, 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, 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, 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, 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, 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

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.

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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, 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

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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.

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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

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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.

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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.

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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, 500.

RUMPH. Amb. Rariteitkamer, p. 100, 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.

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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. 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. 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

[83

from the 4:!l keel, the innermost borders the umbilicus; these spirals are narrow, cordlike, with large interspaci I by riblets in very various direction. Umbilicus rather large, but

nearl) closed by the columellar margin, leaving only a fissure. Aperture incomplete, a rather id but not deep fissure at the upper pari, rounded and turned up behind-. sluipt- of aperture subquadrangular, irregular by the terminations of the keels, columellar margin expanded towards the l'-ft. 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. i% lat. is/t Mill.

This ; resembles. in shape var. lineata Wals. of S. monocingulata (Watson's Journ.

Lin. Soc. Lond. Vol. 14. p-587; eChallenger"-Gastropoda, p. 106, PI. 7, fig. 1); but the general convex and the elaborate sculpture is quite different, so I don't hesitate to ribe it as new.

5. Seguenzia sp.

Stat. 300. io°48'.6S., 123° 23'.! E. Timor Sea. 918 M. Fine, grey mud. 1 Spec.

From this Station a specimen bas been collected, belonging to the rimate species, it differs from the preceding one by its broader, 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 ver)- 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 samc 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 to name the species, nor have I accurately described it, though it will be probably new.

ó. Seguenzia monocingulata Seguenza.

SEGUENZA. Buil. del Com. Geol. Vol. VII, 1876, p. 1S8.

VERRILL. Trans. Connccticut Acad. Vol. VI, 1882 85, p. 186 (formosa).

TRYON. Man. of Conch. Vol. IX, p. 46, PI. 8, fig. 71.

Stat. 137. o°23'.8N., i27°2(j E. Between Makjan and Halmahera. 472 M. Fine, dark, muddy sand. 2 Spec. t. 241. 4°24'.3S., I29°49'.3 E. Banda Sea. 1570 M. Dark sand with small stones. 1 Spec.

These specimens have much puzzled me, those from the two stations being considerably

rent. That from Stat. 241 is more slender and has a coarser sculpture, somewhat different

illected at Stat. 137. The reasons that I have nnited them to the Atlantic

ingulata are: the great variability of that species, as already stated by Dall in his

"Blake" Mollusca, quotcd belore in dealing with .S'. Dautzenbergi\ the.differences

74

..•

x>

«

i83

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. eremita 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. Te7iagodus (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 and some Lithothamnion. 1 Spec. Stat. 144. Damar-island. 45 M. Coral-bottom and Lithothamnion. 2 Spec.

75

■■' ""W: , : c , % . ;rr ;

[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. 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. 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