''Bithynia transsilvanica'' is a species of

freshwater snail Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...

, an aquatic prosobranch

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk in the family

Bithyniidae Bithyniidae is a family of small freshwater snails with an operculum, aquatic gastropod molluscs in the clade Littorinimorpha.Bouchet, P.; Gofas, S. (2015). Bithyniidae Gray, 1857. In: MolluscaBase (2015). Accessed through: World Register of Ma ...

.Bouchet, P. (2013). Bithynia transsilvanica Bielz, 1853. In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=717163 on 2017-04-01

Taxonomy

It was sometimes considered to be an eastern subspecies of '' Bithynia leachii'', and then it was known as ''Bithynia leachii troschelii''.

Specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

''troschelii'' of its synonym is in honor of German zoologist Franz Hermann Troschel.

Distribution

* Czech Republic - It was thought to be locally extinct in Moravia and was considered as regionally extinct in the Czech Republic (RE). There were rediscovered populations in southern Moravia near Lednice and from Nesyt pond in 2008. It was also discovered in Bohemia as a non-indigenous. Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. nnotated list of mollusc species recorded outdoors in the Czech and Slovak Republics. '' Malacologica Bohemoslovaca'', Suppl. 1: 1-37
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* Slovakia * Germany - Recorded in Berlin, Brandenburg, Hamburg, Mecklenburg-Vorpommern, Lower Saxony and Thuringia. It is considered as high endangered (''Stark gefährdet'') in Mecklenburg-Vorpommern and in Lower Saxony. * HungaryGlöer P. & Fehér Z. (2004). "''Bithynia leachii'' (Sheppard, 1823) and ''Bithynia troschelii'' (Paasch, 1842) in Hungary (Prosobranchia: Bithyniidae)". ''

Annales historico-naturales Musei nationalis hungarici Annals are a concise form of historical writing which record events chronologically, year by year. The equivalent word in Latin and French is ''annales'', which is used untranslated in English in various contexts. List of works with titles contai ...

'' 96: 285–297.

Description

Height of shell: 9–11 mm. Width of shell: 5–6 mm.

Habitat

Freshwater species.

References

External links

* Falniowski A., Glöer P. & Szarowska M. (2004). "''Bithynia troschelii'' (Paach, 1842), a giant of unknown origin?" '' Folia Malacologica'' 12(3): 137–139
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{{Taxonbar, from=Q4918881 Bithyniidae Gastropods described in 1853