Alvania transiens

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

Status
From its original source (Sacco, 1895: 27) this is a nomen nudum, however, it has been treated as a valid species.

Distribution
Fossils of this species were found in Miocene strata in Austria.