Shell small, depressed conical, white or cream with apex sometimes lavender or violet. Whorls slightly rounded, smooth, marked by lines of growth. The whole surface invested with a thin fawn, somewhat fibrous epidermis. Interior white, polished, sometimes stained with violet. Aperture fairly deep, elongately oval, margin sharp; basal plate pure white with fine growth-lines plainly visible. Size: 1 inch.

Flinders; dredged off Wilson's Promontory; Point Cook.
This is a striking little shell easily recognized by its depressed conical shape and internal basal plate or shelf. The species enjoys a rather wide distribution along the Victorian coast and in living condition is located attached to stones and on the outer and inner surfaces of larger shells; after heavy weather the species appears in quantity on the shores of Port Phillip. Found also in New South Wales, Tasmania, through Bass Strait to South Australia and Western Australia.