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Vipera orlovi TUNIYEV & OSTROVSKIKH, 2001

IUCN Red List - Vipera orlovi - Critically Endangered, CR

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Higher TaxaViperidae, Viperinae, Colubroidea, Alethinophidia, Serpentes, Squamata (snakes) 
Common Names 
SynonymVipera orlovi TUNIYEV & OSTROVSKIKH, 2001
Vipera kaznakovi — KRAMER 1961:703 (part.)
Vipera dinniki orlovi — SCHWEIGER 2009
Vipera orlovi — LIVIGNI 2013: 351
Pelias orlovi — WALLACH et al. 2014: 533
Pelias orlovi — TUNIYEV 2016 
DistributionW Caucasus (50-1100 m elevation)

Type locality: Papai Mountain, Krasnodarskii region, Russia  
TypesHolotype: SD CSNBR 528, adult male, (Scientific Department, Caucasian State Nature Biosphere Reserve, Sochi), May 12, 1997, coll. S. V. Ostrovskikh. 
CommentSynonymy: this species may be synonymous with V. (P.) dinniki (Mallow et al.,
2003, Smedt, 2006).


Diagnosis. A medium-size viper of the Eurosibe-rian group. Head has more light coloration than body. Canthals and labials are white. Number of ventral shields and number of crown shields are the least for all representatives of "kaznakovi" complex. 
EtymologySpecies is named after the Russian herpetologist — Nikolay L. Orlov, who made an im-portant contribution to the study of Caucasian vipers. 
  • Ananjeva, NB, Orlov NL; Khalikov RG; Darevsky IS; Ryabov IS & Barabanov AV 2006. The Reptiles of North Eurasia. Taxonomic Diversity, Distribution, Conservation Status [this comprises the territory of the former Soviet Union and Mongolia]. Pensoft Series Faunistica 47, 250 pp.
  • De Smedt, J. 2006. The Vipers of Europe. Monasteria, Münster, 340 pp.
  • LiVigni, F. (ed.) 2013. A Life for Reptiles and Amphibians, Volume 1. Chimaira, Frankfurt, 495 pp. - get paper here
  • Mallow, D. Ludwig, D. & Nilson, G. 2003. True Vipers: Natural History and Toxinology of Old World Vipers. Krieger, Malabar, Florida, 410 pp. [review in HR 35: 200, Reptilia 35: 74]
  • Phelps, T. 2010. Old World Vipers. Edition Chimaira, Frankfurt, 558 pp. [critical review in Sauria 33 (3): 19 and HR 43: 503]
  • Schweiger, M. 2009. Die Giftschlangen Europas. Eine Übersicht der Arten und Bemerkungen zu einzelnen Taxa. Reptilia (Münster) 14 (76): 14-25 - get paper here
  • Tuniyev B.S. 2016. Rare species of shield-head vipers in the Caucasus. Nature Conservation Research 1 (3): 11–25 - get paper here
  • TUNIYEV, B. S. & S. V. OSTROVSKIKH 2001. Two new species of vipers of "kaznakovi" complex (Ophidia, Viperidae) from western Caucasus. Russ. J. Herpetol. 8 (2): 117-126 - get paper here
  • Tuniyev, S. B.; A. Avcı, B. S. Tuniyev, A. L. Agasian, L. A. Agasian 2013. Description of a New Species of Shield-Head Vipers - Pelias olguni sp. nov. from Basin of Upper Flow of the Kura River in Turkey. Russ. J. Herpetol. 19 (4): 314-332 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. Taylor and Francis, CRC Press, 1237 pp.
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