The freshwater molluscs of Serbia: Annotated checklist with remarks on distribution and protection status Author Marković, Vanja Author Gojšina, Vukašin Author Novaković, Boris Author Božanić, Milenka Author Stojanović, Katarina Author Karan-Žnidaršič, Tamara Author Živić, Ivana text Zootaxa 2021 2021-07-16 5003 1 1 64 journal article 218052 10.11646/zootaxa.5003.1.1 aceedc3f-3f24-490c-8046-7528c30aac10 1175-5326 5120059 8C98CC0B-18AF-418A-A794-AA3CA9CB7409 12. Bythinella dispersa Radoman, 1976 Findings in Serbia . Bythinella schmidti dispersa : Radoman (1983) ; Jovanović (1991 , 1995, 1998). Bythinella opaca dispersa : Karaman & Karaman (2007) . Bythinella dispersa : Radoman (1976) . Morphology . Minute snails up to 2.8 mm high. Ovoid shell is transparent, and with smooth surface. Aperture is ovoid, or angulated at the top. Apex is blunt, umbilicus is slit like. For more details see Radoman (1983: 176 , fig. 205). Distribution and ecology . Western-Balkan endemic species ( Serbia and Montenegro ). Lives in clean karstic springs. Type locality: Spring in the Dubnica village ( Sjenica Municipality; Drim catchment). Found in springs in Uvac, Ibar and Đetinja drainages (Zapadna Morava catchment). Other remarks . Not assessed on the IUCN Red List.