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)
Copyright Des Beechey 2000