Cirsonella gaudryi

The rather solid, shining, white shell has a turbinate shape.

The spire consists of 3½ convex whorls, separated by a marked suture.

The surface is smooth, except for the base which contains two or three very faint concentric striae.

The columella has a thick callus that connects to the convexity of the penultimate whorl.

it covers for the greater part the umbilicus, that is reduced to a narrow, arched chink.