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Sassia
subdistorta (Lamarck,
1822)
Description:
Shell more or less distorted, with penultimate whorl disproportionately
expanded. Whorls angled, sculptured with axial folds and spiral ribs,
forming nodules at intersections. Folds restricted to shoulder of body
whorl; spirals towards base beaded. Posterior canal well defined,
anterior canal short. Inner lip of aperture smooth centrally, with lirae
beside posterior canal and 4-5 lirae at base. Outer lip internally
smooth or with weak denticles. Colour fawn or tan, nodules lighter; some
spirals with dark brown between nodules. Covered with brown periostracum
when alive.
Size:
Length up to 70 mm.
Distribution:
Endemic to Australia; Port Stephens, NSW, to Esperance, WA.
Habitat:
Most frequently taken as a beach shell or down to 30 m, but occasionally
down to 275 m. Rare in NSW.
Figs. 1,2: Off Twofold Bay, NSW, in 73 m (C.066502)
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