Confirmation of the Red-Backed Rat Snake Oocatochus rufodorsatus (Cantor, 1842) (Squamata: Colubridae) in Amur Oblast’, Russian Federation

Adam Carsten Stein, Viktoriia Alexandrovna Kalinina


The existence of the Red-backed rat snake, Oocatochus rufodorsatus [syn: Elaphe rufodorsata], in Amur Oblast’ has been contentious. Earlier researchers suggested its range extended west to the Zeya River, but failures to find specimens have left most current biologists to believe the northernmost range of this species along the Amur River is actually around Voskresenovka, Khabarovsk Kray. Here we report the possible existence of a population of Red-backed rat snakes in Amur Oblast’ west of the Zeya River.


red-backed rat Snake; Oocatochus rufodorsatus; First regional record; Russian Federation; Amur Oblast’; Elaphe rufodorsata; Colubridae

Full Text:



Adnagulov E. V., Tarasov I. G., and Gorobeiko V. V. (2000), «New data on the amphibians and reptiles distribution in the Russian Far East», Russ. J. Herpetol., 7(2), 139 – 154.

Bannikov A. G., Darevsky I. S., Ishchenko V. G., Rustamov A. K., and Szczerbak N. N. (1977), Field Guide to the Amphibians and Reptiles of the USSR Fauna, Prosveshchenie, Moscow [in Russian].

Ineich I. (2010), «Oocatochus rufodorsatus», in: The IUCN Red List of Threatened Species. Version 2015.2. URL: Downloaded August 4, 2015.

Szczerbak N. N. (2003), Guide to the Reptiles of the Eastern Palearctic, Krieger Publishing Company, Malabar, Florida.

Tarasov I. G. and Adnagulov E. V. (1995), Amphibians and reptiles of the Amur Region. Field guide, Blagoveshchensk [in Russian].

Tarasov I. G., Adnagulov E. V., and Bylkov A. F. (1998), «On the fauna of amphibians and reptiles of the Evreiskaya Autonomous Region», in: Biological Diversity of Animals in Siberia. Proc. of Sci. Conf. on 110th Annivers. of Zool. Investigation and Education in Siberia, Tomsk, 110 – 111 [in Russian].



  • There are currently no refbacks.

You can subscribe to the print or electronic version of the journal on the site of EastView Company. If you have any questions, please write to the email