Ferrissia fragilis

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Ferrissia fragilis
Conservation status
NE
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Basommatophora
Family: Ancylidae
Genus: Ferrissia
Species: F. fragilis
Binomial name
Ferrissia fragilis
(Tryon, 1863)
Synonyms
  • Ferrissia clessiniana (Jickeli, 1882)
    Ferrissia wautieri (Miroli, 1960)

Ferrissia fragilis is a species of small freshwater limpet, an aquatic gastropod mollusk in the family Ancylidae, (sometimes placed in the family Planorbidae or Ferrisiidae).

These animals have a pallial lung, as do all pulmonate snails, but they also have a false gill or "pseudobranch". This serves as a gill as, in their non-tidal habitat, these limpets never reach the surface for air.

[edit] Distribution and conservation status

Europe.

[edit] References

  1. ^ 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 15 October 2007.
  2. ^ Beran L. & Horsák M., 2007: Distribution of the alien freshwater snail Ferrissia fragilis (Tryon, 1863) (Gastropoda: Planorbidae) in the Czech Republic. – Aquatic Invasions 2 (1): 45-54.
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