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Austrodrillia beraudiana (Crosse, 1863)

Description: Shell sculptured with solid axial ribs, restricted to lower two thirds of spire whorls, 7 or 8 per whorl, crossed by fine spiral threads. Axial ribs fading out on lower half of body whorl. Inner lip of aperture with callous pad at upper end in mature shells; outer lip with rounded V shaped sinus with apex at centre of shoulder slope. Colour fawn, axial ribs cream.

Size: Up to 17 mm in length.

Distribution: Endemic to Australia; Clarence River, NSW, to Victoria and southern Tasmania.

Habitat: Intertidal down to 15m. Moderately common.

Comparison: This species differs from A. angasi by being broader, having fewer but larger axial ribs, and lacking the dark brown coloration between ribs.

Synonymy: Drillia taeniata Tenison-Woods, 1878

Fig. 1:  Balmoral, Middle Harbour, Sydney, NSW (C.372457)

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Copyright Des Beechey 2004