Alvania tenera

Alvania tenera is a species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.

Description
The length of the shell varies between 1.6 mm and 3 mm.

The thin shell is pellucid and brownish white. it contains 5 whorls, with a deep suture, and strong spiral ridges, of which there are 9-10 on the body whorl. The wider interstices are slightly longitudinally striated. The outer lip is simple and dentate by the ridges.

Distribution
This species occurs in the Western and Central Mediterranean Sea.