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Odostomia tomacula (Laseron, 1951)

Description: Shell large, elongate, moderately wide, spire weakly convex, up to 6 teleoconch whorls. Protoconch coiled (Type B) of about 2 whorls, set on teleoconch with axis inclined at more than 90 to teleoconch, nucleus submerged. Teleoconch whorls strongly rounded, smooth. Aperture teardrop shaped, expanded anteriorly, columella with weak plait. Shell colourless transparent when fresh, becoming opaque with age.

Size: Up to 6.5 mm in length.

Distribution: Known from Port Stevens southwards to Sydney, NSW.

Habitat: Available specimens are empty shells from beach washup. Very uncommon.

Fig. 1: Many Beach, Sydney (C.340927)


Copyright Des Beechey 2015