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
... 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 the base , might almost be called the ' ovulata - stage ' . Even when mature the ribs ...
... 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 the base , might almost be called the ' ovulata - stage ' . Even when mature the ribs ...
Page 90
... base ; crossed by spiral lirae ( visible mainly in the intervals ) 7-8 on early whorls , increasing to c . 12-15 on later whorls , not always regular , some being finer than others ; base with fine spiral striae . Peri- meter of base ...
... base ; crossed by spiral lirae ( visible mainly in the intervals ) 7-8 on early whorls , increasing to c . 12-15 on later whorls , not always regular , some being finer than others ; base with fine spiral striae . Peri- meter of base ...
Page 183
... base with one lira above , followed by a deep sulcus and then a strong costa ; the axial ribs traceable across the sulcus and the costa , causing the latter to appear granulate ( pitted in Smith's figure ) ; sutures crenulate ; outer ...
... base with one lira above , followed by a deep sulcus and then a strong costa ; the axial ribs traceable across the sulcus and the costa , causing the latter to appear granulate ( pitted in Smith's figure ) ; sutures crenulate ; outer ...
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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