Bithynia transsilvanica

Bithynia transsilvanica
Conservation status
Not evaluated (IUCN 3.1)[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. transsilvanica
Binomial name
Bithynia transsilvanica (Bielz, 1853)[2]
Synonyms[3]
Bithynia leachii troschelii Bithynia troschelii (Paasch, 1842)[4]

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

Taxonomy

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

Specific epithet 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).^[5] There were rediscovered populations in southern Moravia near Lednice and from Nesyt pond in 2008.^[6] It was also discovered in Bohemia as a non-indigenous.^[7]
• Slovakia^[7]
• 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.^[8]
• Hungary^[9]
• ...

Description

Operculum of Bithynia transsilvanica.

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

Habitat

Freshwater species.

References

1. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 10 August 2014.
2. (German) Bielz E. A. (1853). "Beitrag zur Kenntniss der siebenbürgischen Land- und Süsswassermollusken". Verhandlungen und Mittheilungen des Siebenbürgischen Vereins für Naturwissenschaften in Hermannstadt 4(7): 113-124, 162-165.
3. "Species summary for Bithynia transsilvanica". AnimalBase, last modified 26 October 2013, accessed 26 April 2016.
4. (German) Paasch A. (1842). "Beschreibung einer neuen bei Berlin gefundenen Paludina". Archiv für Naturgeschichte 8(1): 300-301, Tab. 6. Berlin.
5. (Czech) 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.
6. 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. PDF.
7. (Czech) Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.
8. (German) Glöer P. & Meier-Brook C. (2003). Süsswassermollusken. DJN, pp. 134, page 106, ISBN 3-923376-02-2
9. Glöer P. & Fehér Z. (2004). "Bithynia leachii (Sheppard, 1823) and Bithynia troschelii (Paasch, 1842) in Hungary (Prosobranchia: Bithyniidae)". Annales historico-naturales Musei nationalis hungarici 96: 285–297.

External links

• Falniowski A., Glöer P. & Szarowska M. (2004). "Bithynia troschelii (Paach, 1842), a giant of unknown origin?" Folia Malacologica 12(3): 137–139. PDF.