Alvania sororcula
Alvania sororcula is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Description
The length of the shell varies between 3 mm and 4 mm.The shell is whitish or fulvous.it shows prominent spiral lirae, decussated by a less elevated longitudinal sculpture, which becomes obsolete on the base. The shell contains five, convex, subangulate whorls. The suture is deepand channeled. The outer lip is scarcely varicose.