1 1.) 



th coast of Manipa-island. 36 M. Coral, sand. 1 S])cc. 

 • I . poinl ol rimor. 27 54 M. Sand, coral and Lithotham- 

 nii 



l . rimor Sea. 73 M. Soft mud with very fine sand. 1 Spec. 

 . Saleh-bay. Up to {6 M. Sand, coral and mud. 1 Spec. 



The ■ specially the youngest «uk-s are covered by an epidermis 



witl 



Gyrineum Link. 



1 . C 'M gyrinum Linné. 



I.inm. Syst. Nat. Ed. X. p. 74S. X" 453. 



Kü iq. Viv. Vol. VI, Kandia, p. 28, PI. 2, fig. 3 [ranina). 



/E. ( onch. 1c. Vol. II. Ranella, fig. 49. 

 KüSTER. Martini-Chenin. Conch. Cab. Ed. II, Triton, p. 152, PI. 40, fig. 4 — 6. 

 TRYON. Man. of Conch. Vol. III. p. 43, Tl. 23, fig. 48. 



Stat. 33. Bay of Pidjot, Lombok. 22 M. Mud, coral and coralsand. 1 Spec. 



Stat. 47 . < )ff Batu Putih, entrance of Bay of Bima. Shore. 1 Spec. 



Stat. 123. North-bay, Biaru-island. 36 — 27 M. Stone and Lithothamnion-bottom. 1 Spec. 



Stat. 174. Waru-bay, North coast of Ceram. Keef. 1 Spec. 



Stat. ^22. South of Tandjong-Lajar, South coast of Bawean. 32 M. Coral. 1 Spec. 



2. Gyrineum bituberculare Lamarck. 



LAMARCK. An. s. vert. Ed. II, Vol. 9, p. 548. 



KJENER. Coq. Viv. Vol. VI, Ranella, p. 26, PI. 6, fig. 2. 



REEVE. Conch. Ie. Vol. II, Ranella, fig. 40. 



Ki STER. Martini-Chémn. Conch. Cab. Ed. II, Ranella, p. 153, PI. 39^, fig. 9, 12. 



TRYON. Man. of Conch. Vol. III, p. 42, PI. 23. fig. 44. 



Stat. 53. Bay of Nangamessi, Sumba. Up to 36 M. Coralsand. 2 Spec. 



Stat. 116. West of Kwandang-bay-entrance. 72 M. Fine sand with mud. 1 Spec. 



Stat. 193. Sanana-bay, East coast of Sula-Besi. Keef. 1 Spec. 



Stat. 2S5. South coast of Timor. 34 M. On the limit between mud and coral. Lithothamnion. 



Stat. 296. Xoimini, South coast of Timor. 8 — 36 M. Sandy mud. 1 Spec. [2 Spec. 



Stat. 313. East of Dangar-Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. 2 Spec. 



Stat. 318. 6°36'.sS., 140° 55.5 1'-. Java Sea. SS M. Fine, yellowish-grey mud. 1 Spec. 



The specimens from Stat. 116 and 285 are young and have a somewhat misleading 

 appearance, by the closer sculpture. Ilowever the species is very variable in this respect, and 

 these specimens are connected t<> more typical ones by intermediate forms, I. i. those from 

 Stat. 313. Tryon says on this. subject (1. c. p. 43): "The tubercles are numerüiis on the earlier 

 whorls, bnt in some instances) coallesce into two large ones between the varices on tlie last 

 whorl of the adult. When the more numerous tubcrcles are persistent, the resemblance to the 

 R. tuberculata) is striking". 



Gyrineum cuspidatum Reeve. PI. XV, fig. 7. 



nch Ie. Vol. II, Ranella, fig. 48. 



Man. of Conch. Vol. III, p. 43, PI. 23, fig. 49. 



6 



