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Eatoniella atrella Ponder &Yoo, 1977

Description: Shell minute, short-spired. Spire outline convex. Protoconch of 1 whorls. Teleoconch 2-2 weakly convex whorls; in length about equal to or slightly greater than aperture. No spiral or axial sculpture. Aperture oval, flared anteriorly; outer lip simple, sharp, straight when viewed in profile; inner lip broad. Umbilicus closed. Shell opaque, black or grey.

Size: Up to 1.3 mm in length.

Distribution: Endemic to Australia; Black Head, NSW (near NSW-Victoria border), southwards to eastern Victoria and Tasmania.

Habitat: On exposed shores, mostly on algae in the lower littoral. Uncommon.

Comparison: See comparison of the genus under Eatoniella atropurpurea

Figs. 1, 2: North side of Black Head, Nadgee, NSW (C.102239 PARATYPE)


Copyright Des Beechey 2012