title: Heterocyclus
text: # Heterocyclus
  
  Heterocyclus is a genus of minute freshwater snails with an operculum, aquatic gastropod molluscs or micromolluscs in the family Hydrobiidae.
  
  ## Species
  
  Species within the genus Heterocyclus include:
  
  * Heterocyclus perroquini (Crosse, 1872)
  * Heterocyclus petiti (Crosse, 1872)
  