Alvania strangei
Alvania strangei is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Description
The length of the shell attains 2.2 mm, its diameter 1 mm.The minute, rather solid shell is imperforate and turbinately conoid. It is whitish, faintly light banded with light brown. It contains 5½ whorls. The apical whorls are smooth. The others are longitudinally strongly ribbed, ending at the periphery. The interstices are smooth and slightly noduled at the sutures, which are rather deep. The base of the shell is convex and has three strong raised spiral lines. The aperture is subcircular. The outer lip is rather thin. The white columella is thickened.