Fossarina legrandi

Fossarina legrandi, common name Legrand's top shell, is a species of very small sea snail, a marine gastropod mollusc or micromollusk in the family Trochidae, the top snails.

Description
The shell grows to a length of 5 mm. The small, thin shell has a depressed globose shape. It is highly polished, translucent and rich brown. The minute spire contains 2½ whorls and is very little elevated. The suture is much impressed. The aperture is inflately lunate. It is tinged white and faintly dilate at the inner portion.

Distribution
This marine species is endemic to Australia and occurs off New South Wales, South Australia, Tasmania, Victoria and Western Australia.