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4035-1.jpg (68124 bytes)

Icunculus zodiacus (Hedley, 1907)

Description: Protoconch of 1 1/2 strongly shouldered whorls, with keel at shoulder. Teleoconch up to 4 whorls. Spire whorls with two strong keels, last whorl with 3 additional keels on base. Axial sculpture absent. Umbilicus closed. Inner lip of aperture sometimes standing free of columella; outer lip thin, crenulated by external keels. Colour translucent white or fawn, opaque in old shells.

Size: Up to 2 mm in length.

Distribution: Endemic to Australia: Mackay, Queensland, around southern Australia to south-western WA.

Habitat: Known from empty shells from beach washup, and down to 117 m. Moderately common.

Comparison: Half the size of I. torcularis with two keels rather than one on the spire whorls.

Synonymy: Lippistes consobrina May, 1919 appears to be the same species.

Fig. 1: 4035-1 Shoal Point, Mackay, Queensland (C.360519)

 

Copyright Des Beechey 2007