Report on the zoological collections made in the Indo-Pacific Ocean ...

.;MOLLUSCA. 69Torres Straits (Coppinger) ; Cape Grenville, North-east Australia(15 fms.), and Long Island, Torres Straits {Brazier).The operculum is narrow, deeply and acutely serrate on onemargin, smooth on the other, and has a raised ridge running fromthe smaller end almost to the opposite extremity.53. Terebellum suhulatum, Lamardc.Hah. Flinders Is., Clairmont Is., North-east Australia, 11 fms.{Copjjinge^-),54. C3rpr£ea arabica, Linn.Hah. Port Molle coral-reef.55. Cyprasa lynx, Linn.Hab.Port Molle coral-reef.Hah.Port Molle coral-reef.56. Cyprasa annulus, Linn.57. Cypraea errones, Linn.Hah. Port Molle, Queensland (Ooppinger) ; New South Wales,rare ! {Angus)The only example of this species from the above locality is ofunusually small size. It is only 19 millim. in length and 10 i wide.58. Cypraea walkeri.Gray, Reeve, Conch. Icon. figs. 50 a, b, &c.Hab. Flinders Is., Clairmont Is., North-east Australia, 11 fms.,sand and mud {Coppinger); Philippine Islands {Sowerby, Thes.) ;Palm Island and Cape Grenville, North-east Australia, also DarnleyIsland, Torres Straits {Brazier).59. Ovnla (Radius) angasi.Ovulum angasi, Adams, Reeve, Conch. Icon. figs. 43 a, b.Volva angasi, Angas, Proc. Zool. Soc. 1807, p. 207,Hab. Port Curtis, 11 fms., sand and shell bottom {Coppitiger)Port Curtis {Reeve) ; Watson's Bay, New South AVales, on a branchof red Gorgonia, amongst the rocks at extreme low water {Angas).In the brief description in the Conchologia Iconica ' ' one ortwo important characters are not noticed. The dorsal surface ofthe shell towards both ends is very prettily sculptured in anoblique direction with fine wavy strife, as indicated in the figurein the above work, the waviness being due to the fine transverselines of growth. The colour is white, more or less transparent.