Odabaşı, Deniz Anıl2024-10-162024-10-162023-10-200939-7140https://doi.org/10.1080/09397140.2023.2272412https://hdl.handle.net/11452/46535In Turkiye, the family Bithyniidae is represented by two genera: Bithynia (Leach, 1818) and Pseudobithynia (Gloer & Pesic, 2006). Recent studies have shown that Bithyniidae species have a broad distribution across southeastern Europe, including Greece, Montenegro, and Bulgaria. In Turkiye, a total of 14 species have been documented so far, with nine belonging to the genus Bithynia and five to Pseudobithynia. We found a new Bithynia species in Kocacay Stream, situated in the southern Marmara Region. This newly identified species has been compared with all known congeners from nearby ecosystems in Turkiye and neighbouring countries.eninfo:eu-repo/semantics/closedAccessN. sp gastropodaGreece gastropodaPseudobithyniaTurkeyIranMolluscaBithynia alii sp. nProtected wetlandFreshwater molluscsScience & technologyLife sciences & biomedicineZoologyArticle001089480700001182470110.1080/09397140.2023.2272412