- Common names: Dinnik's viper, Caucasus subalpine viper.
is a venomous viper species
found in Russia
. No subspecies are currently recognized.
Of the 49 Russian specimens examined by Orlov and Tuniyev (1990), 29 were males and the largest measured 41.2 cm. Of the 20 females, the largest was 48.6 cm in length.
) and Georgia
(high mountain basin of the Inguri River
), eastward to Azerbaijan
. According to Nikolsky (1916), the type locality
is "upper reaches of the Malaya Laba 8000 feet above sea level ... and Svanetia, 7000 feet above sea level." According to Nilson et al. (1995), Vedmederja et al. (1986) restricted it to "Malaya Laba" through lectotype
selection. Orlov and Tuniyev (1990) give the lectotype locality as "Upper reaches of the Malaya (Small) Bolshaya Laba River
, Northern Caucasus".
This species is classified Vulnerable (VU) according to the IUCN
Red List of Threatened Species with the following criteria: C1+2a (v2.3, 1994). This indicates that the population is estimated to number less than 10,000 mature individuals. A continued decline of at least 10% is expected within 10 years or three generations, whichever is longer. In addition, a continued decline is expected due to a severely fragmented population structure, with no subpopulation estimated to contain more than 1,000 mature individuals. Year assessed: 1996.
- Nilson G, Tuniyev BS, Orlov NL, Höggren M, Andrén C. 1995. Systematics of the vipers of the Caucasus: Polymorphism or sibling species? Asiatic Herpetological Research 6:1-26.
- Orlov NL, Tuniyev BF. 1990. Three species in the Vipera kaznakowi complex (Eurosiberian Group) in the Caucasus: Their present distribution, possible genesis, and phylogeny. Asiatic Herpetological Research 3:1-36.