Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 47

1st whorl 27 fathoms 2nd whorl 3rd whorl 4o fathoms 4th whorl 8o metres Algoa Bay aperture apical Braga Cape Morgan Cape Natal Cape Point capensis central plate columella cusp dead Delagoa Bay diam dorsal Durban East London False Bay fig figure fine first Fossil Gmelin granules grooves growth-lines identified Indo-Pacific Inhambane intermediaries Jaeckel juvenile Knysna Krauss Krss Lamy last whorl lateral plate left valve length Linn living Macnae & Kalk marginal plates Martens Mossel Bay Muir n.sp natalensis nodules oblique operculum outer lip P.F. coll periostracum peripheral Pieter Faure Pleistocene pliculae Port Alfred Port Alfred Bartsch Port Elizabeth Port Elizabeth Sowerby posterior Postnatal whorls profile Protoconch radial Radula Remarks riblets right valve River Natal Saldanha Bay Schilder sculpture shell slightly Smith smooth South African Museum Sowerby Sowerby’s species specimens spiral lirae striae suture Table Bay Thiele Tomlin Tugela River Turton umbilicus umbo Zululand