Annals of the South African Museum, Volume 45The Museum, 1960 - Natural history |
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Page 452
... hypocone being more flattened than that of the protocone . Roots . Despite the marked fragmentation , it is possible to identify three roots . The lingual root being composed of two massive pillars joined by a plate , and the anterior ...
... hypocone being more flattened than that of the protocone . Roots . Despite the marked fragmentation , it is possible to identify three roots . The lingual root being composed of two massive pillars joined by a plate , and the anterior ...
Page 455
... hypocone and the metacone , while the depressions are opposite parastyle , mesostyle and metastyle . Lingual surface . The protocone has an obvious cingulum , while that of the hypocone is less obvious . On the antero - lingual aspect ...
... hypocone and the metacone , while the depressions are opposite parastyle , mesostyle and metastyle . Lingual surface . The protocone has an obvious cingulum , while that of the hypocone is less obvious . On the antero - lingual aspect ...
Page 465
... hypocone . Occlusal surface . The hypocone has a V - shape , while the paracone tends to be slightly more U - shaped . The central pits are open in the region of the mesostyle . Roots . The lingual root is broken off at the crown - root ...
... hypocone . Occlusal surface . The hypocone has a V - shape , while the paracone tends to be slightly more U - shaped . The central pits are open in the region of the mesostyle . Roots . The lingual root is broken off at the crown - root ...
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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