Annals of the South African Museum, Volume 45The Museum, 1960 - Natural history |
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Page 427
... marked wear and fragmentation . Occlusal surface . The central pits are completely worn away , except for a small island of enamel in the posterior pillar . The buccal enamel of the posterior pillar is U - shaped , while that of the ...
... marked wear and fragmentation . Occlusal surface . The central pits are completely worn away , except for a small island of enamel in the posterior pillar . The buccal enamel of the posterior pillar is U - shaped , while that of the ...
Page 436
... marked cingulum ; on the anterior portion of the posterior pillar , the cingulum is less marked , while it is most marked on the talonid . A short ectostylid is present . The surface is rather rugose . The buccal surface slopes quite ...
... marked cingulum ; on the anterior portion of the posterior pillar , the cingulum is less marked , while it is most marked on the talonid . A short ectostylid is present . The surface is rather rugose . The buccal surface slopes quite ...
Page 479
... marked and rounded . There is a bulge below the cingulum which is more marked in the anterior than in the posterior pillar . In the posterior pillar , this bulge gives way to a sharp outward angulation of the lingual surface in the ...
... marked and rounded . There is a bulge below the cingulum which is more marked in the anterior than in the posterior pillar . In the posterior pillar , this bulge gives way to a sharp outward angulation of the lingual surface in the ...
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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