Chetanov Nikolai A. A. RussiaPermPerm State Humanitarian Pedagogical University, 24 Sibirskaya St., Perm 614990, Russiachetanov@yandex.ru Author's articles Some features of thermobiology of steppe-runner Eremias arguta (Gmelin, 1789) and spotted toadhead agama Phrynocephalus guttatus (Gmelin, 1789) (Squamata, Reptilia) in cohabitation in the Northern Pre-Caspian