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
References