Calliclava aegina

(Original description) The brownish shell is pale on the early whorls, with a whitish glaze and polished.

The suture is strongly appressed behind the concave arcuately striated anal fasciole.

The outer lip is thin, sharp, produced, smooth internally with a deep rounded anal sulcus close to the suture with a heavy lump of callus on the side of the body.

The inner lip has a rather thick callus with a raised edge extending to the end of the columella.

[3] This marine species was found off Agua Verde Bay, Gulf of California, Western Mexico.