Alvania geryonia

Alvania geryonia is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.

Description

The length of the shell varies between 2.5 mm and 4 mm.

Distribution

This species occurs in the Mediterranean Sea off Corsica, France, Tuscany, Italy and Greece; also in the Atlantic Ocean off the Azores.