Bithynia troschelii

Bithynia troschelii
Conservation status
NE^[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha
Superfamily:	Rissooidea
Family:	Bithyniidae
Genus:	Bithynia
Subgenus:	Codiella
Species:	B. troschelii
Binomial name
*Bithynia troschelii* (Paasch, 1842)^[2]
Synonyms
Bithynia leachii troschelii

Bithynia troschelii is species of small freshwater snail, an aquatic prosobranch gastropod mollusk in the family Bithyniidae.

Taxonomy

This is sometimes considered to be an eastern subspecies of Bithynia leachii, and then it is known as Bithynia leachii troschelii.

Czech Republic - It was thought to be locally extinct in Moravia. Regionally extinct in the Czech Republic (RE).^[3] There were rediscovered populations in southern Moravia near Lednice and from Nesyt pond in 2008.^[4]
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.^[5]
Hungary - see Glöer & Fehér (2004)
...

Freswater species.

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

^ 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 9 January 2008.
^ Paasch, A. 1842. Beschreibung einer neuen bei Berlin gefundenen Paludina. - Archiv für Naturgeschichte 8 (1): 300-301, Taf. 6. Berlin.
^ Beran L., Juřičková L. & Horsák M. 2005. Mollusca (měkkýši), pp. 69-74. In: Farkač J., Král D. & Škorpík M. [eds.], Červený seznam ohrožených druhů České republiky. Bezobratlí. Red list of threatened species in the Czech Republic. Invertebrates. – Agentura ochrany přírody a krajiny ČR, Praha, 760 pp.
^ Beran L. & Horsák M. 2009 Distribution of Bithynia leachii (Sheppard, 1823) and Bithynia troschelii (Paasch, 1842) (Gastropoda: Bithyniidae) in the Czech Republic. Malacologica Bohemoslovaca, 8: 19-23. Online serial at <http://mollusca.sav.sk> 29-April-2009.
^ Glöer P. & Meier-Brook C. 2003. Süsswassermollusken. DJN, pp. 134, page 106, ISBN 3-923376-02-2