Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 47South African Museum, 1963 - Natural history |
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Page 454
... concentric growth - lines ; concentric lirae broad , about equal in width to the grooves , rounded - flattened ( not due to abrasion ) , obsolescent anteriorly and posteriorly , in juv . at 2.5 mm . alt . 9 lirae , at 5 mm . 15–16 , at ...
... concentric growth - lines ; concentric lirae broad , about equal in width to the grooves , rounded - flattened ( not due to abrasion ) , obsolescent anteriorly and posteriorly , in juv . at 2.5 mm . alt . 9 lirae , at 5 mm . 15–16 , at ...
Page 516
... Concentric sulci over whole shell . Tumid 2. Concentric sulci dorsally on each side of umbo , and also on anterior half in shells larger than c . 25 mm . long 3. Concentric sulci on each side of umbo only . ( a ) Oval - triangular ...
... Concentric sulci over whole shell . Tumid 2. Concentric sulci dorsally on each side of umbo , and also on anterior half in shells larger than c . 25 mm . long 3. Concentric sulci on each side of umbo only . ( a ) Oval - triangular ...
Page 535
... concentric lirae in a space of 1 mm . The postero - dorsal lirae on two left and two right valves from Natal are noticeably finer and closer together than either the oblique or the concentric lirae . On a Nossi Bé shell , however , they ...
... concentric lirae in a space of 1 mm . The postero - dorsal lirae on two left and two right valves from Natal are noticeably finer and closer together than either the oblique or the concentric lirae . On a Nossi Bé shell , however , they ...
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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