Annals of the South African Museum, Volume 45The Museum, 1960 - Natural history |
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Page 430
... anterior pit broadening out anteriorly and the posterior pit broadening out posteriorly . The enamel of the anterior surface of the anterior pillar is worn rather thin due to contact pressure of M1 . M1 . The general description is ...
... anterior pit broadening out anteriorly and the posterior pit broadening out posteriorly . The enamel of the anterior surface of the anterior pillar is worn rather thin due to contact pressure of M1 . M1 . The general description is ...
Page 471
... anteriorly from below upwards . The buccal surface is fairly rugose and there is no cingulum formation visible . The enamel has slight irregularities on it , and there is a small protostylid . Looking at the posterior surface , it can ...
... anteriorly from below upwards . The buccal surface is fairly rugose and there is no cingulum formation visible . The enamel has slight irregularities on it , and there is a small protostylid . Looking at the posterior surface , it can ...
Page 477
... anteriorly . The posterior border is rounded ; the anterior border at , and above , the flange narrows ( and it is more angular than at the base ) while nearer the tip , above the second knob , the anterior border becomes rounder ...
... anteriorly . The posterior border is rounded ; the anterior border at , and above , the flange narrows ( and it is more angular than at the base ) while nearer the tip , above the second knob , the anterior border becomes rounder ...
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Common terms and phrases
1st whorl 2nd whorl 3rd whorl 4th whorl additional lirae Algoa Bay 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 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