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Entalina dorsicostata Lamprell & Healy, 1998

Description: Shape strongly curved, 4-sided, dorsal side convex, ventral and lateral sides slightly concave. Weight solid. Aperture diameter up to 1.8 mm. Apex 5-sided, 0.6 mm diameter. Sculpture dorsal side with well-defined evenly spaced minor ribs, other sides smooth. Transverse sculpture absent. Aperture subquadrate. Colour white.

Size: Up to 17 mm in length.

Distribution: Global distribution: Philippine Islands, Indonesia, Australia, New Caledonia, New Zealand (Scarabino, 2008). In Australia, northern, eastern and southern Australia, including NSW.

Habitat: Dredged in fine mud or ooze from 153 to 2000 m (Lamprell & Healy, 1998). Uncommon.

Comparison: This species is readily identified by the strongly curved shell, with the longitudinal ribs restricted to the dorsal side.

Fig. 1: Off Cairns, Qld, in 1161 m (C.173428) a. Lateral view, b. Dorsal view.


Copyright Des Beechey 2020