Alvania perregularis

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


 * Variety:
 * † Alvania perregularis var. varicosa Friedberg, 1923 (taxon inquirendum)

Distribution
Fossils of this species were found in Tortonian strata (Miocene) near Steinbrunn, Austria.