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3450-1.JPG (121561 bytes)

Colpospira yarramundi Garrard, 1972

Description: Protoconch of 1 whorls, teleoconch about 10 whorls in adult shells. Whorls convex, suture impressed. Whorls spirally ribbed; latter whorls with 2 strong, equal sized keels on the periphery, and a weaker keel below; 1 or 2 threads between upper and lower keels and suture. Axial sculpture of sparse growth lines conforming to shape of outer lip sinus. Inner lip of aperture reflected outwards at base; outer lip thin, with a deep sinus, lip usually broken Base with about 5 low spiral threads. Colour uniformly white. Operculum circular, corneous.

Size: Up to 6 mm in length.

Distribution: Endemic to Australia; Sydney, NSW, southwards to Bass Strait.

Habitat: Known from 146-295 m. Uncommon

Comparison: See C. wollumbi.

Remarks: The geographic range given here for this species is narrower than that given by Garrard in the original description, as some specimens included by him are now regarded as other species.

Fig. 1: Between Cape Howe and Lakes Entrance, Victoria, in 146-158 m (C.087118 PARATYPE).

Copyright Des Beechey 2006