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Heliacus enoshimensis (Melvill, 1891)

Description: Shell low, spire convex in outline. Teleoconch whorls straight-sided or weakly convex, with 5 beaded spiral cords, the lowermost strongest, crossed by oblique grooves; the lowermost constitutes the peripheral cord on last whorl. Periphery with another beaded but weaker cord below peripheral cord. Base strongly convex, with 5 beaded spiral cords between lower peripheral cord and umbilical margin. Umbilicus narrowly open, with strongly toothed margin. Colour fawn with regular dark flames, peripheral cord with alternating brown and white zones.

Size: Largest specimen seen 12 mm diameter.

Distribution: Australia and Japan. In eastern Australia, Mooloolaba, Qld, southwards to Sydney, NSW. Also Norfolk Island.

Habitat: Subtidal, 35-140 m (Geiger, 1993) but most Australian specimens are from beach washup. Uncommon in Australia.

Comparison: See Granosolarium asperum.

Figs. 1-3: Off Jibbon, Port Hacking, NSW, in 7580 m (C.367693).


Copyright Des Beechey 2016