Family Ancylidae refers to a group of freshwater snails that belong to the Gastropod mollusk family. Other synonyms that can be used interchangeably with Family Ancylidae include the Ancylinae, Fossulkidae, or Ferrissiidae. The genus name Ancylus is sometimes used to describe these snails, which have elongated shells and prefer to live in calm, freshwater streams and rivers. These snails can be found in various parts of the world, including Europe, Asia, South America, and Africa. Synonyms for Family Ancylidae can be useful for researchers and educators looking to describe these fascinating creatures in various scientific and academic settings.