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.