Oparin Michail Livovich RussiaSaratovSaratov Branch of the Institute of Ecology and Evolution named after AN Severtsov of the Russian Academy of Sciences, 410028, Saratov, Rabochaya str., 24директорд-р биол. наукoparinml@mail.ru Author's articles The Rare and Endangered Species of Mammals Recommended for Entering into the Third Edition of the Red Book of the Saratov Region