Demoulia ventricosa

The two last whorls are much more swollen, and covered upon their whole surface with very fine and very close transverse striae.

The white aperture is ovate, narrowed at its upper part and dilated inferiorly.

The outer lip is thin and is ornamented interiorly with numerous transverse striae.

It is ornamented at the upper part of the whorls, and along the suture, with a white band, alternating with irregular deeper spots.

[2] This marine species occurs off False Bay, South Africa, and Mozambique.