Annals of the South African Museum, Volume 45The Museum, 1960 - Natural history |
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Page 450
... occlusal surface at an acute angle from the cingulum , but near the occlusal surface the angulation changes and the lingual surface tends to become slightly more vertical . The slope of the buccal surface on the other hand is almost ...
... occlusal surface at an acute angle from the cingulum , but near the occlusal surface the angulation changes and the lingual surface tends to become slightly more vertical . The slope of the buccal surface on the other hand is almost ...
Page 454
... Occlusal surface . The central pit is fairly wide and open posteriorly , while anteriorly the two enamel surfaces are in continuity with each other . Posterior surface . A large piece of the enamel near the buccal aspect is broken away ...
... Occlusal surface . The central pit is fairly wide and open posteriorly , while anteriorly the two enamel surfaces are in continuity with each other . Posterior surface . A large piece of the enamel near the buccal aspect is broken away ...
Page xxx
... occlusal aspects respectively . b , j , r - M 944 , buccal , lingual , occlusal aspects respectively . c , k , s - M 536 , buccal , lingual , occlusal aspects respectively . d , 1 , t - M 533 , buccal , lingual , occlusal aspects ...
... occlusal aspects respectively . b , j , r - M 944 , buccal , lingual , occlusal aspects respectively . c , k , s - M 536 , buccal , lingual , occlusal aspects respectively . d , 1 , t - M 533 , buccal , lingual , occlusal aspects ...
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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