False Ear Shell

Appearance

The size of the shell varies between 19 mm and 43 mm. The solid shell is very much depressed. It is white with scattered reddish dots. Its surface is covered with
very numerous, close, equal spiral riblets, separated by deep interstices. Seen closely, it is finely scaly. It has a low, short spire. The four whorls widen with extreme rapidity. The subhorizontal aperture is transverse-oval. It is lined with a closely sulcate silvery and iridescent nacre. The broad columella is flattened, and a little concave. Its edge is arched and thin.

Distribution

This marine species occurs off New South Wales, South Australia and Tasmania.