Annals of the South African Museum, Volume 45The Museum, 1960 - Natural history |
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Page 19
... juveniles ( up to 16 mm . ) but in large specimens becoming obsolete ( except in vars . beckeri and rietensis ) , 16-18 on 1st whorl , 9-11-13 ( sometimes 14 ) on last whorl ; spiral striae over whole whorl , but usually obsolete on ...
... juveniles ( up to 16 mm . ) but in large specimens becoming obsolete ( except in vars . beckeri and rietensis ) , 16-18 on 1st whorl , 9-11-13 ( sometimes 14 ) on last whorl ; spiral striae over whole whorl , but usually obsolete on ...
Page 24
... juveniles . A flat sutural band of callus adnate to the previous whorl , with irregular upper margin , on body whorl expanding into the large oval or subcircular parietal callus ( c . 30 mm . diam . ) extending from upper suture on body ...
... juveniles . A flat sutural band of callus adnate to the previous whorl , with irregular upper margin , on body whorl expanding into the large oval or subcircular parietal callus ( c . 30 mm . diam . ) extending from upper suture on body ...
Page 202
... juveniles and one adult , but abraded in the others , the intervals in cross - section V - shaped ( not U - shaped ) , the back slope steeper than the forward slope ; no spiral sculpture but a very slight indication of a shoulder keel ...
... juveniles and one adult , but abraded in the others , the intervals in cross - section V - shaped ( not U - shaped ) , the back slope steeper than the forward slope ; no spiral sculpture but a very slight indication of a shoulder keel ...
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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