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Range DescriptionSteppe between Volga and Irtysh rivers (Russia; N Kazakhstan). Formerly, steppe between Don and Volga rivers (Russia: Gromov et al. 1965). On the western bank of Volga River found in NW part of Volga Hills (Ermakov and Titov 2000). Reported from Xinjiang (Ma et al. 1987); but probably a misidentified S. brevicauda. Its range is increasing in the south and the west (N. Formozov pers. comm. 2006). Occurs from sea level to 600 m.