| Bythinella reyniesii | |
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| An individual of the form compressa | |
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| Bythinella reyniesii Holotype MHNT | |
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| Species: | B. reyniesii |
| Binomial name | |
| Bythinella reyniesii (Dupuy, 1851) | |
| Synonyms | |
Bythinella compressa(Frauenfeld, 1857) Contents | |
Bythinella reyniesii is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae.
These snails live in springs. They were long believed to occur only in Andorra, Austria, and parts of France. This disjunct distribution was puzzling, until it was realized that the populations assigned to several other supposedly distinct species actually seem to all belong to one species. In fact, Bythinella reyniesii is probably widespread from western Germany and nearby Belgium through central and eastern France to Andorra. [2]
These are small snails, with a nearly cylindrical shell measuring just over 2 mm in length. There is little morphological and almost no genetic variation between the supposed "species". Thus, even though the proposed synonymy resulted from mtDNA COI and nDNA ITS1 sequence data analyses applied to the phylogenetic species concept (which does not recognize subspecies), as opposed to the morphologically diverse Bythinella bicarinata it might not even be warranted to accept the formerly distinct taxa as subspecies. [2]
The northeastern specimens formerly separated in Bythinella compressa were classified as Vulnerable (B1+2c), as they were known from less than ten freshwater springs which are affected by pollution. [3] Bythinella reyniesii, in the traditional sense was classified as a Species of Least Concern (meaning it is not considered globally threatened), [1] and this assessment applies to the species in the expanded sense also.
Stenodus leucichthys is a species of freshwater whitefish in the family Salmonidae. In the strict sense its natural distribution is restricted to the Caspian Sea basin, and it is known as beloribitsa. The beloribitsa is now considered extinct in the wild, but survives in cultured stocks. The nelma, a more widespread species of Eurasian and North America, is sometimes considered its subspecies.
The particolored flying squirrel is a species of rodent in the family Sciuridae. It is found in Bangladesh, Bhutan, Cambodia, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
Bythinella badensis is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae. This species is endemic to Germany.
Bythinella is a genus of very small freshwater snails, an aquatic gastropod mollusk in the family Bythinellidae.
Bythinella bavarica is a species of species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae. This species is endemic to Germany.
Bythinella bicarinata is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae.
Bythinella carinulata is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae. This snail is endemic to France.
Bythinella padiraci is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae. This snail is endemic to France, from a very little place named "Gouffre de Padirac".
Bythinella pupoides is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae. This snail is found in France and Switzerland.
Bythinella vesontiana is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae. This species is endemic to France.
Bythinella viridis is a species of very small freshwater snail, an aquatic gastropod mollusc in the family Amnicolidae. This species is found in Belgium and France.
The New Zealand flax snail or pupuharakeke, scientific name Placostylus bollonsi, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Bothriembryontidae.
Bythinella gloeeri is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae.
Bythinella markovi is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Amnicolidae.
Pseudamnicola macrostoma is a species of very small freshwater snail with an operculum, an aquatic gastropod mollusc in the family Hydrobiidae.
Bythinella turca is a species of very small freshwater snail, an aquatic gastropod mollusk in the family Hydrobiidae. The species is endemic to Turkey, and is currently Critically endangered due to the clearing and "improvement" of the spring in which it lives for human recreational purposes.
Hadopyrgus rawhiti is a critically endangered species of freshwater snail native to New Zealand.
Opacuincola eduardstraussi is a critically endangered species of fresh water snail native to New Zealand.
