Checklist of the freshwater snails (Mollusca: Gastropoda) of Mongolia Author Marinskiy, Vadim V. text Zootaxa 2017 2017-01-01 4317 1 45 78 journal article 32235 10.11646/zootaxa.4317.1.2 d9650b33-97b2-4d9c-867b-79cd628daf8f 1175-5326 880022 Cd399D08-1Db1-4319-Aa0D-Db560C7C38Df Valvata ( Sibirovalvata ) brevicula Kozhov, 1936 ( fig. 2 F) Regional distribution. A Single dry Shell identified by uS aS belonging to Valvata brevicula (See fig. 2 F) waS found among SpecimenS collected by ZhaltSanoVa in an unknown waterbody of Mongolia (the label of thiS Sample waS totally deStroyed). Extra-limital distribution. The type locality of V. brevicula iS Boguchan Bay of the Baikal Lake ( VinarSki & Kantor 2016 ). It iS broadly diStributed in Siberia and the RuSSian Far EaSt , including areaS neighbouring to Mongolia ( SitnikoVa et al . 2015). Morphology. The Shell of V. brevicula iS heaVily ribbed and reSembleS ShellS of V. confusa . The main difference between the two SpecieS lieS in the relatiVe height of Shell Spire; in V. brevicula it iS Significantly leSS than in V. confusa .