Annals of the South African Museum, Volume 45

additional African Alfred antennae anterior aperture apex appearance aspect axial ribs base becoming body breadth broken brown buccal callus Cape central plate cingulum cirri columella Conch cusps dead described developed diam distinct dorsal Durban East enamel examples extending False Bay fathoms figure fish foot fragment groove knobs lateral length less lirae Living lobe lower Makapansgat margin marked Martens material Maximum metres middle Museum narrow Natal Notes occlusal Operculum outer lip P.F. coll pair pale pillar plate Point Port posterior Postnatal whorls present protoconch radula Records Remarks root rostrum rounded rows seen segments setae shell shoulder shows side similar slightly Smith smooth sometimes South African Sowerby species specimens spiral spiral lirae spire striae surface suture Table Table Bay teeth Thiele Tomlin tooth Turton upper usually