Polypylis sibirica Starobogatov et Streletzkaja, 1967

Marinskiy, Vadim V., 2017, Checklist of the freshwater snails (Mollusca: Gastropoda) of Mongolia, Zootaxa 4317 (1), pp. 45-78 : 69

Polypylis sibirica Starobogatov et Streletzkaja, 1967

( fig. 7 H)

Regional distribution. We include thiS SpecieS into our check-liSt on the baSiS of two SampleS kept in ZIN: 1) Onon RiVer baSin, TSagaan Nuur Lake (23.08.1987, leg. A. Dulmaa, det. Ya. StarobogatoV); 2) “VicinitieS of Ulanbaatar ” (06.1997; leg. Yu. MaruSik, det. L. ProzoroVa). Polypylis sibirica haS hitherto not been reported from Mongolia.

Extra-limital distribution. P. sibirica iS known to inhabit waterbodieS located around the Baikal Lake (ProzoroVa et al. 2009).

Morphology. SpecimenS of P. sibirica collected in Mongolia are morphologically identical to indiVidualS of thiS SpecieS from Siberia deScribed by StarobogatoV & Streletzkaja (1967).

Figures

FIGURE 7. Shells of planorbid snails discUssed in the paper. A. — Gyraulus terekholicus (09.07.1996, Hövsgöl Lake, the Khankh River moUth, leg. Sitnikova). B— G. kruglowiae, a probable syntype (19.08.1936, Central Altai Mts., Ten’ga Lake, leg. Johansen; ZMMU). C— G. kruglowiae (29.03.1981, Tolbo NUUr Lake, leg. Zhaltsanova). D— G. infraliratus, a syntype (Siberia, Nizhny Imbatsk, det. WesterlUnd; NMG). E— G. infraliratus (10.06.2010, Nariyn gol River, leg. Palatov & Maryinskiy). F— G. stroemi (12.07.2012, a pool in the Khovd River floodplain, leg. Vinarski). G— Helicorbis kozhovi (07.05.1977, Khalkh River, leg. Zhaltsanova). H— Polypylis sibirica (23.08.1987, Tsagaan NUUr Lake, leg. DUlmaa; ZIN). Scale bars: 2 mm. Fig. D after Vinarski et al. (2013), slightly modified.