Annals of the South African Museum, Volume 45The Museum, 1960 - Natural history |
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Page 426
... enamel in the direction of the talonid . The anterior pillar is more rounded than the posterior pillar , the peripheral enamel of the posterior pillar being more V - shaped than that of the anterior pillar , which is rather U - shaped .
... enamel in the direction of the talonid . The anterior pillar is more rounded than the posterior pillar , the peripheral enamel of the posterior pillar being more V - shaped than that of the anterior pillar , which is rather U - shaped .
Page 452
... enamel thrown into two folds which project into the centre of the pit , and the extremities of the pit extend towards metastyle and mesostyle . The dentine is particularly hollowed out between the enamel of the lingual surface and that ...
... enamel thrown into two folds which project into the centre of the pit , and the extremities of the pit extend towards metastyle and mesostyle . The dentine is particularly hollowed out between the enamel of the lingual surface and that ...
Page 461
... enamel on the occlusal surface which leads up to the metastyle is in contact with the enamel of the rest of the central pit . The parastyle is markedly curved and twisted posteriorly on its own axis , as in M 531 and M 1114. As in M 531 ...
... enamel on the occlusal surface which leads up to the metastyle is in contact with the enamel of the rest of the central pit . The parastyle is markedly curved and twisted posteriorly on its own axis , as in M 531 and M 1114. As in M 531 ...
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Common terms and phrases
1st whorl 2nd whorl 3rd whorl 4th whorl additional lirae antennae anteriorly aperture apex axial ribs Bartsch body whorl brown Buccal surface callus camelopardalis Cape Cape Natal capensis central pit central plate cingulum cirri cirrus columella Conch cusps denticles diam distal dorsal cirri Durban elytra enamel False Bay fathoms Fauvel Giraffa groove Holotype Hopefield horn-core hypocone juveniles knobs last whorl later whorls lateral plate length lingual surface M₁ mandible Martens median mesostyle metres molar Museum Natal Occlusal surface Olduvai Operculum outer lip P.F. coll pale parapodium parietal callus periostracum plicate Port Alfred posterior pillar Postnatal whorls Proc prostomium protoconch Protoconch 2 whorls radula Records root rows rugose segments setae setiger setigerous lobe shell Sivatherium slightly Smith smooth South African Sowerby species specimens spiral lirae spiral striae spire suture talonid teeth Thiele Tiefsee Exp Tomlin tooth Turton upper Zool Zoology