Sharyi-ool M.O., Yalysheva E.N.
V.Ya.Levanidov memorial lectures 2021; (9): 208–212
Data on a small bivalve’s fauna of the Tuvan-Mongolian Biosphere Reserve "Ubsunur Hollow" (UNESCO list) are presented. Annotated checklist including 8 species from 2 subfamilies (Euglesinae and Pisidiinae) and 4 genera is given. Cingulipisidium nitidum (Jenyns, 1832) is the first record for Tore-Khol Lake, Euglesa ovale (Clessin, 1903) (Bivalvia: Sphaeriidae: Euglesinae) is the first record for Russia. Majority of endemic species are distributed in the Inner Asia (67 %) from Tibet to Afghanistan.
