First Record of Keratella tropica (Apstein, 1907) (Rotifera: Brachionidae) in Western Siberia

The paper presents materials about the first record of the tropical rotifera Keratella tropica (Apstein, 1907) in Western Siberia. This rotifer was first recorded in the Krivoi Uskat River, Kemerovo oblast, in July, 2016. This river is a recipient of mine water from an open cast coal mine. The most likely way of rotifer dispersal is a transfer of meromictic eggs by waterfowl.