Acroloxidae
Acroloxidae, commonly known as river limpets, are a taxonomic family of very small, freshwater snails, aquatic pulmonate gastropod limpet-like mollusks with a simple flattened conical shell in the clade Hygrophila.
Acroloxidae is the only family within the superfamily Acroloxoidea.
Distribution
Worldwide.Anatomy
Pulmones are reduced. Sexual cavity and accessory gills are on the right side.Genera
Genera within the family Acroloxidae include:Acroloxus Beck, 1838 - type genusBaicalancylus Starobogatov, 1967Frolikhiancylus Sitnikova & Starobogatov, 1993Gerstfeldtiancylus Starobogatov, 1989Pseudancylastrum Lindholm, 1909;Synonyms:Costovelletia Starobogatov, 1991: synonym of Acroloxus H. Beck, 1838 Dinarancylus Starobogatov, 1991: synonym of Acroloxus H. Beck, 1838 Velletia J. E. Gray, 1840: synonym of Acroloxus H. Beck, 1838