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]
^(in 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.
^Beran L. & Horsák M. (2009). "Distribution of Bithynia leachii (Sheppard, 1823) and Bithynia troschelii (Paasch, 1842) (Gastropoda: Bithyniidae) in the Czech Republic". Malacologica Bohemoslovaca8: 19–23. PDF.
^ ab(in 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.
^(in German) Glöer P. & Meier-Brook C. (2003). Süsswassermollusken. DJN, pp. 134, page 106, ISBN3-923376-02-2