#family_Ancylidae__Ancylidae  freshwater gastropod
  supertype:  #mollusk_family__molluskfamily  a family of mollusks
  member of:  #class_Gastropoda
  member:  #genus_Ancylus__Ancylus  type genus of the family Ancylidae: river limpet
     member:  #river_limpet__riverlimpet__freshwater_limpet__Ancylus_fluviatilis  minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants

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