Freshwater molluscs of Kyrgyzstan with description of one new genus and species (Mollusca: Gastropoda)

Ten species of freshwater molluscs were collected in 2013 during an expedition to Kyrgyzstan. Five gastropod species, i.e. Radix auricularia (L.), Radix cf. hookeri (Reeve), Lymnaea kashmirensis Prashad , Gyraulus chinensis (Dunker) , Physella acuta (Drap.), and two bivalve species, i.e., Pisidium casertanum (Poli) and P. obtusale (Lamarck) are reported as new for the fauna of Kyrgyzstan. A new hydrobiid genus and species, Chirgisia alaarchaensis n. gen. n. sp., is described from a rheocrenic spring in the National Park Ala Archa in northern Kyrgyzstan. Based on literature survey and our own studies, a checklist of freshwater molluscs of Kyrgyzstan is compiled. It includes a total of 27 gastropod species of 12 genera and six families, and two bivalve species of the genus Pisidium.