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Alaginella carinata (Smith, 1891) Diagnosis: Shell small, opaque white when dead, strongly narrowed anteriorly, whorls sharply angled, sometimes keeled at the angle; spire medium in height; aperture moderately wide; lip thickened internally, smooth or with about seven denticles, slightly flared posteriorly; external varix present; posterior notch weak; columella with four strong plaits, occupying slightly more than half the aperture. Size: Adults 6 mm in length Distribution: Australian
Museum Collection: off Sandy Cape, Queensland, to off Ulladulla, NSW, in
457 – 1153 metres. Comparison: Distinctive within the genus because of its keeled whorls and very deep water habitat. Figs. 1,2: 800 fathoms (1463 m), 35 miles east of Sydney (C.026691). This is the specimen figured by Laseron (1948, fig. 46). |
