Oreoleuciscus potanini
Oreoleuciscus potanini, the Altai osman, is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which contains the daces, chubs, true minnows and related species. It inhabits Mongolia and Tuva, Russia, in freshwater rivers and lakes with temperatures of between. It has a maximum length of, a common length of, a maximum published weight of and a maximum published age of 40 years. It is considered harmless to humans.