Colligyrus

Colligyrus is a genus of small freshwater snails that have an operculum, aquatic gastropod mollusks in the family Hydrobiidae.

Species
Species within the genus Colligyrus include:


 * Colligyrus convexus Hershler, Frest, Liu, and Johannes, 2003
 * Colligyrus depressus Herschler, 1999 - Harney Basin duskysnail
 * Colligyrus greggi (Pilsbry, 1935) - type species