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 17. Bythinella pesterica Glöer, 2008 Findings in Serbia . Bythinella pesterica : Glöer (2008) . Morphology . Minute snails (shell up to 3.1 mm high). Shell is cylindrical with deep suture. Apex is blunt, umbilicus is closed. Flagellum is very thick, penial appendix is as long as penis, or up to double length of penis. For more details see Glöer (2008: 353 , figs 4, 6). Distribution and ecology . Serbian endemic species known from one locality only. Type locality Stračijevac Spring (Pešter plateau). Other remarks . Not assessed on the IUCN Red List. The species is protected on national level (Annex 1- strictly protected species; Official Gazette of RS 5/2010, 47/2011, 32/2016, 98/2016).