Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 47South African Museum, 1963 - Natural history |
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Page 212
... apical view . At alt . 0.9 , diam . 2 mm . , 2 whorls , the middle lira scarcely more prominent than the upper lira , and the lower lira has shifted towards the axis to form the basal lira surrounding the umbilicus . The apical surface ...
... apical view . At alt . 0.9 , diam . 2 mm . , 2 whorls , the middle lira scarcely more prominent than the upper lira , and the lower lira has shifted towards the axis to form the basal lira surrounding the umbilicus . The apical surface ...
Page 246
... apical view is not visible throughout ; and by the much feebler axial pliculae which nowhere form with the spiral lirae a cancellate sculpture . At first sight the shell appears to be only spirally lirate . S. sulcifera Lam . and mariei ...
... apical view is not visible throughout ; and by the much feebler axial pliculae which nowhere form with the spiral lirae a cancellate sculpture . At first sight the shell appears to be only spirally lirate . S. sulcifera Lam . and mariei ...
Page 346
... apical slit , sometimes an apical slit plus 4-5 perforations ( depending on the length of the apical portion which has been broken off , or absorbed by the animal ) . There is considerable variation in the ribbing . In the smallest ...
... apical slit , sometimes an apical slit plus 4-5 perforations ( depending on the length of the apical portion which has been broken off , or absorbed by the animal ) . There is considerable variation in the ribbing . In the smallest ...
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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