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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 oblique 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