Duplicaria ustulata (Deshayes, 1857)
Description: Shell with slightly convex whorls, with a deep subsutural groove. Strong axial ribs above and below subsutural groove, about 20-25 on penultimate whorl; ribs above subsutural groove offset to align with interspaces of the ribs below; ribs fading out at base. Spiral sculpture of microscopic, irregular grooves that cross axial ribs. Fasciolar band well defined; siphonal notch moderately deep. Outer lip thin and simple. Colour fawn or beige, often with base of body whorl tan.
Size: Up to 37 mm in length.
Distribution: Endemic to Australia; Forster, NSW, to south-eastern SA, including Tasmania.
Habitat: Subtidal to 150 m. Occasionally taken as a beach shell. Very uncommon.
Comparison: T. assescla is the closest to this species; it differs by having a broad, shallow groove around the centre of whorls.
Fig. 1 Disaster Bay, NSW, in 18 m (C.361129)
Copyright Des Beechey 2004