Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 47South African Museum, 1963 - Natural history |
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Page 207
... length of 6.5 mm . The width ranges from 91 % to 531 % of the length . Krauss's measurements for 4 species show a range from 88 % to 48 % : kochii 88 % , capensis 63 % , elongata 56 % , tenuis 48 % . In africana the width is 77 % , and ...
... length of 6.5 mm . The width ranges from 91 % to 531 % of the length . Krauss's measurements for 4 species show a range from 88 % to 48 % : kochii 88 % , capensis 63 % , elongata 56 % , tenuis 48 % . In africana the width is 77 % , and ...
Page 520
... length 15 , alt . 1.25 mm . , and 1.75 × 1.5 mm . The ridge from umbo to postero - ventral corner distinct , postero - dorsal margin convex . The figure of rufanensis Turton ( 1932 , pl . 69 , no . 1805 ) , 4 X 3.5 mm . , shows a ...
... length 15 , alt . 1.25 mm . , and 1.75 × 1.5 mm . The ridge from umbo to postero - ventral corner distinct , postero - dorsal margin convex . The figure of rufanensis Turton ( 1932 , pl . 69 , no . 1805 ) , 4 X 3.5 mm . , shows a ...
Page 524
... length is 29 mm . , which is thus not quite twice in the post - umbonal length . Neither the anterior nor the posterior dorsal margins are raised enough to conceal entirely the growth - lines on either side of the umbo , and the ...
... length is 29 mm . , which is thus not quite twice in the post - umbonal length . Neither the anterior nor the posterior dorsal margins are raised enough to conceal entirely the growth - lines on either side of the umbo , and the ...
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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