Ferrissia
Encyclopedia
Ferrissia is a genus
of air-breathing freshwater snail
, a small freshwater limpet
, an aquatic gastropod mollusk in the family Planorbidae
, the ram's horn snails and their allies.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of air-breathing freshwater snail
Freshwater snail
A freshwater snail is one kind of freshwater mollusc, the other kind being freshwater clams and mussels, i.e. freshwater bivalves. Specifically a freshwater snail is a gastropod that lives in a watery non-marine habitat. The majority of freshwater gastropods have a shell, with very few exceptions....
, a small freshwater limpet
Limpet
Limpet is a common name for a number of different kinds of saltwater and freshwater snails ; it is applied to those snails that have a simple shell which is more or less conical in shape, and either is not spirally coiled, or appears not to be coiled in the adult snails.The name limpet is most...
, an aquatic gastropod mollusk in the family Planorbidae
Planorbidae
Planorbidae, common name the ramshorn snails or ram's horn snails, is a family of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks....
, the ram's horn snails and their allies.
Species
Species within the genus Ferrissia include:- Ferrissia fragilisFerrissia fragilisFerrissia fragilis is a species of small freshwater limpet, an aquatic gastropod mollusk in the family Planorbidae.- Distribution :This species is found in European countries and islands including:*Czech Republic*Germany*Netherlands*Poland...
(Tryon, 1863) - synonyms: Ferrissia clessiniana (Jickeli, 1882), Ferrissia wautieri (Mirolli, 1960) - Ferrissia mcneili - hood ancylidHood ancylidFerrissia mcneili, common name the hood ancylid, is a species of small freshwater snail or limpet, an aquatic gastropod mollusk in the family Planorbidae, the ram's horn snails and their allies....
- Ferrissia rivularis (Say, 1817) - the type speciesType speciesIn biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...
- Ferrissia tanganyicensisFerrissia tanganyicensisFerrissia tanganyicensis is a species of small freshwater snail or limpet, an aquatic gastropod in the family Planorbidae.- Distribution :...