Lyogyrus
Lyogyrus is a genus of very small freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Amnicolidae.
Species
Species within the genus Lyogyrus include:Lyogyrus bakerianus Lyogyrus brownii Lyogyrus granum Lyogyrus latus F. G. Thompson & Hershler, 1991Lyogyrus pilsbryi Lyogyrus pupoideus Lyogyrus retromargo Lyogyrus walkeri;Synonyms:
- † Lyogyrus beizhenensis Youluo, 1978 Lyogyrus browni : synonym of Lyogyrus brownii
- † Lyogyrus cylindricus Youluo, 1978 Lyogyrus dalli Pilsbry & Beecher, 1892: synonym of Amnicola dalli Lyogyrus greggi - Rocky Mountain duskysnail: synonym of Colligyrus greggi Lyogyrus limosus : synonym of Amnicola limosus Lyogyrus vanhyningi Vanatta, 1934: synonym of ''Floridobia vanhyningi''