Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 47South African Museum, 1963 - Natural history |
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Page 51
... smooth ; but from an early stage ( before outer lip is inflected ) the ribs cross the base and start to cross the spire . One growth - stage when the ribs are only beginning to be formed across the base , or only on the anterior part of ...
... smooth ; but from an early stage ( before outer lip is inflected ) the ribs cross the base and start to cross the spire . One growth - stage when the ribs are only beginning to be formed across the base , or only on the anterior part of ...
Page 145
... smooth Operculum externally saucer - like , smooth Operculum externally with upstanding spiral lamella Operculum externally with spinate processes Operculum externally conical or dome - like Operculum absent Protoconch smooth ...
... smooth Operculum externally saucer - like , smooth Operculum externally with upstanding spiral lamella Operculum externally with spinate processes Operculum externally conical or dome - like Operculum absent Protoconch smooth ...
Page 479
... smooth band is constant in all the present valves , and is not due to abrasion . This smooth band is said to distinguish this South African form from quad- risulcata ; but does it also distinguish it from angulifera von Martens ...
... smooth band is constant in all the present valves , and is not due to abrasion . This smooth band is said to distinguish this South African form from quad- risulcata ; but does it also distinguish it from angulifera von Martens ...
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Common terms and phrases
1st whorl 27 fathoms 2nd whorl 3rd whorl 40 fathoms 4th whorl 80 metres agulhasensis alfredensis 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 figure Fossil Gmelin granules grooves growth-lines Inhambane intermediaries Jaeckel juvenile Krauss Krss Lamy last whorl lateral plate left valve length Linn lirae 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 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 worn Zululand