Alvania thalia

Alvania thalia is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.
;Varieties:

† Alvania thalia var. exbrevis Sacco, 1895
† Alvania thalia var. subacingulata Sacco, 1895

Description

The length of the shell attains 4.9 mm, its diameter 1.8 mm.

Distribution

Fossils of this marine species were found in Pliocene strata off Siena, Italy.