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Gloydius halys (PALLAS, 1776)

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Higher TaxaViperidae, Crotalinae, Serpentes (snakes) 
SubspeciesGloydius halys affinis (GRAY 1849)
Gloydius halys boehmei NILSON 1983
Gloydius halys caraganus (EICHWALD 1831)
Gloydius halys caucasicus (NIKOLSKY 1916)
Gloydius halys cognatus (GLOYD 1977)
Gloydius halys halys (PALLAS 1776)
Gloydius halys mogoi (BOUR 1993)
Gloydius halys stejnegeri (RENDAHL 1933) 
Common NamesE: Halys Pit Viper; halys: Siberian, boehmei: Böhme’s pitviper, caraganus: Karaganda pitviper, caucasicus: Caucasian pitviper, cognatus: Alashan pitviper, stejnegeri: Gobi pitviper
G: Halys-Otter 
SynonymColuber halys PALLAS 1776: 703
Trigonocephalus Halys — BOIE 1827
Halys halys — GRAY 1849
Trigonocephalus Halys — DUMÉRIL & BIBRON 1854: 1495
Ancistrodon halys — BOULENGER 1913
Agkistrodon halys — POPE 1935
Ancistrodon halys — SMITH 1943: 499
Agkistrodon halys — HARDING & WELCH 1980
Gloydius halys — HOGE & ROMANO-HOGE 1981
Agkistrodon halys halys — ORLOV & BARABANOV 1999
Gloydius halys — MCDIARMID, CAMPBELL & TOURÉ 1999: 303

Gloydius halys affinis (GRAY 1849)
Trigonocephalus (Halys) affinis GRAY 1849: 14
Agkistrodon blomhoffii affinis — STEJNEGER 1907: 461
Agkistrodon halys affinis

Gloydius halys boehmei NILSON 1983
Gloydius halys boehmei — GUMPRECHT et al. 2004

Gloydius halys caraganus (EICHWALD 1831)
Trigonocephalus caraganus EICHWALD 1831
Ancistrodon halys caraganus
Agkistrodon halys caraganus — HARDING & WELCH 1980
Agkistrodon halys caraganus — WELCH 1994: 11
Agkistrodon halys caraganus — LAMBERT 2002
Gloydius halys caraganus — GUMPRECHT et al. 2004

Gloydius halys caucasicus (NIKOLSKY 1916)
Ancistrodon halys caucasicus NIKOLSKY 1916
Agkistrodon (Gloydius) intermedius caucasicus
Agkistrodon halys caucassicus NIKOLSKY 1916
Agkistrodon halys caucasicus — HARDING & WELCH 1980
Gloydius halys caucasicus — GUMPRECHT et al. 2004

Gloydius halys cognatus (GLOYD 1977)
Agkistrodon halys cognatus GLOYD 1977
Agkistrodon halys cognatus — WELCH 1994: 11
Gloydius halys cognatus — GUMPRECHT et al. 2004

Gloydius halys halys (PALLAS1776)
Coluber halys PALLAS 1776
Agkistrodon halys halys — HARDING & WELCH 1980
Agkistrodon halys halys — WELCH 1994: 11
Gloydius halys halys — GUMPRECHT et al. 2004

Gloydius halys liupanensis LIU, SONG & LUO 1989
Gloydius liupanensis — WANG et al. 2006
Gloydius liupanensis — XU et al. 2012

Gloydius halys stejnegeri (RENDAHL 1933)
Ancistrodon halys stejnegeri RENDAHL 1933
Gloydius halys stejnegeri — GUMPRECHT et al. 2004 
DistributionChina, N Iran, S/SW Russia, Kazakhstan (between Volga and Ural River),
Uzbekistan, Tajikistan, Kyrgyzstan, E Afghanistan, Mongolia, Turkmenistan

halys: N China, S Siberia, Mongolia; “salt lake near the Lugaskoi sawod [factory] on the upper yenisey” (Siberia, Russia), according to Gloyd & Conant (1990). Redefined as “naryn or ryn peski (desert), near the russia-Kazakhstan border” by Bour (1993). Type locality: Lower Volga River, Russia; "Salt Lake near the Lugaskoi Sawod [factory] on the Upper Yenisey” [Siberia, Russia], according to Gloyd and Conant, 1990:319. Redefined as Naryn or Ryn Peski desert, near the Russia-Kazakhstan border by Bour (1993:335). Terra typica restricta. Lugaskoi Zavod (Strauch, 1873). Small salt lakes near Lugaskoi Za- vod, Upper Yenisey River (= “Lugaskoi Zawod, obe- res Jenissei Gebiet”) [ORLOV & BARABANOV 1999]

boehmei: E Afghanistan; Terra typica. Andarab valley, province of Baghlan, 2500 m elevation, east Afghanistan.

caraganus: Uzbekistan, Turkmenistan, Tajikistan; from the mouth of the Volga to E Kazakhstan; Type locality: Ora orientali caspii maris Tjuk-karaganensi (= Cape Karagan Hill, Mangyshlak Peninsula, eastern edge of the Caspian Sea, western Kazakhstan).

caucasicus: S Turkmenistan, Azerbaijan, N Iran, NW Afghanistan. Type locality: Lenkoransky Uezd (now Lenkoran
District, south-eastern Azerbaijan).

cognatus: NC China. Type locality: Choni, on the Tao River, Gansu Province, China.

stejnegeri: China, SE Mongolia. Type locality: China. Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
TypesNeotype: ZISP 14784. Borgaiskaya steep, 84 km W from Kyakhta town, Burin-Khan mountain. Leg.: P. S. Mikhno, July 20, 1930.
Holotype. ZFMK 8648 [boehmei]
Neotype. ZISP 2200 Mangyshlak Peninsula. Leg.: K. Baer, 1854 [caraganus]
Neotype. ZISP19017.1 Azerbaijan, Lenkoran District, vicinity of the Kirovsk town. Leg.: V. E. Dmitrijev, May 15, 1978; Lectotype (designated by VEDMEDERYA et al. 2009). MNKNU 14942, [caucasicus]
Holotype: USNM 68586. Paratypes. USMN 68504, 68506, 68541 [cognatus]
Lectotype: NHRM 1923 809.2780 [stejnegeri] 
CommentVenomous!

Distribution: see maps in ORLOV & BARABANOV 1999.

Subspecies: Agkistrodon halys ussuriensis and other subspecies have been elevated to full species status.

Synonymy: The status of Trigonocephalus affinis GRAY 1849 remains unclear. MCDIARMID et al. 1999 list it as synonym of G. blomhoffi. GUMPRECHT et al. (2004) do not recognize the subspecies liupanensis, mogoi, and affinis.

Type species: Trigonocephalus Halys — BOIE 1827 is the type species of the genus Gloydius HOGE & ROMANO-HOGE 1981, a replacement name for Halys GRAY 1849, which is pre-occupied by Halys FABRICIUS 1803 (Hemiptera). See also MCDIARMID et al. 1999 for further discussion.

Type specimens: Not located (fide MCDIARMID et al. 1999).

Diagnosis (halys). Dorsal scales in 23 rows at midbody (very seldom 21 or 25); ventrals 141 – 187, sub- caudals 29 – 56; 7 – 9 supralabials. Total length up to 750 mm [ORLOV & BARABANOV 1999].

Diagnosis (boehmei, sensu Nilson, 1983). Total length 438 mm and tail 49 mm. Snout slightly raised. Dorsal scales, except lowermost row, strongly keeled on body and tail. At midbody scale rows are 23, apical pits absent. Two pre- and two postoculars on each side. Supralabials 7, sublabials 11. Ventrals 155, subcaudals 35, anal not divided [ORLOV & BARABANOV 1999].

Diagnosis (caucasicus). Total length up to 660 mm. Supra- labials 7 – 8, rarely 9; dorsal scales in 23 rows at midbody (rarely 25); ventrals 142 – 169; subcaudals 31 – 46 [ORLOV & BARABANOV 1999].

Diagnosis (cognatus). Total length up to 590 mm. Supralabials 7 – 8; dorsal scale in 23 rows at midbody, sometimes 21; ventrals 153 – 165; subcaudals 36 – 54 [ORLOV & BARABANOV 1999].

Diagnosis (stejnegeri). Supralabials 7 – 8; dorsal scales in 23 rows at midbody; ventrals 147 – 165; subcaudals 39 – 46. Total length up to 625 mm [ORLOV & BARABANOV 1999].

Activity Pattern. Diurnal and night.

Reproduction. Viviparous. 
EtymologyEtymology (genus): named after Howard Kay Gloyd (1902-1978), American herpetologist. 
References
  • Boulenger, G. A. 1913. The snakes of Europe. Methusen & Co. Ltd, London, 151 pp.
  • Bour, R. 1993. Les voyages de Peter Simon Pallas et l’origine de Coluber halys (Serpentes Viperidae). Bull. mens. Soc. linn. Lyon, 62: 328-340.
  • Conant, Roger 1992. The type locality of Agkistrodon halys caraganus. Asiatic Herpetological Research 4: 57 - get paper here
  • Conant,R. 1982. Agkistrodon in Europe. Salamandra 18 (3/4): 191-195
  • Daming, Ji; Weng, Shisheng; and Liu, Migyu 1988. Classification of Agkistrodon halys in Northeast China. In Current Herpetology in East Asia, edited by M. Matsui, T. Hikida, and R.C. Goris. Proceedings of the Second Japan-China Herpetological Symposium, Kyoto, 521 pages.
  • Dujsebayeva, T. N. (ed.) 2010. Short review of last changes in the checklist of amphibians and reptiles of Kazakhstan. In: Dujsebayeva, T. N. (ed.) Herpetological Researches in Kazakhstan and adjacent countries [in Russian]. Almaty: ACBK - KBCU, 260 pp. (p. 37-52; [ISBN 978-601-278-294-3]
  • Gloyd, H. K. & R. CONANT 1990. Snakes of the Agkistrodon complex. A monographic review. Society for the Study of Amphibians and Reptiles. Contributions to Herpetology No. 6. SSAR, Oxford, Ohio. vi + 614 pp; 52 pl.
  • Gumprecht, A.; Tillack, F.; Orlov, N.L.; Captain, A. & Ryabow, S. 2004. Asian pitvipers. Geitje Books, Berlin, 368 pp.
  • Hoge & ROMANO-Hoge 1981. Poisonous snakes of the world. Part I. Check list of the pit vipers, Viperoidea, Viperidae, Crotalinae. Mem. Inst. Butantan 42/43 [1978-1979]: 179-309
  • Hübers, R. & Fricke-Hübers, M. 1983. Agkistrodon halys caraganus (EICHWALD 1831) im Terrarium. Herpetofauna 5 (26): 25-27 - get paper here
  • Itoh, Masahiro; Sasaki, Motomichi; Makino, Sajiro. 1970. The chromosomes of some Japanese snakes, with special regard to sexual dimorphism. Japanese Journal of Genetics 45(2):121-128
  • Jendretzke, N. 2001. Nachzucht der Halysotter, Gloydius halys halys (PALLAS 1776). Elaphe 9 (2): 22-24
  • Liu, N., Z. SONG & W. LUO 1989. A new subspecies of Agkistrodon halys. J. Lanzhou Univ. Nat. Sci. 25: 114-117
  • McDiarmid,R.W.; Campbell,J.A. & Touré,T.A. 1999. Snake species of the world. Vol. 1. Herpetologists’ League, 511 pp.
  • Orlov, Nikolai L. and Andrei V. Barabanov. 1999. Analysis of nomenclature, classification, and distribution of the Agkistrodon halys - Agkistrodon intermedius complexes: a critical review. Russ. J. Herpetol. 6 (3): 167-192 - get paper here
  • Pallas, P.S. 1776. Reise durch verschiedene Provinzen des russischen Reichs. Kais. Akad. Wiss., St. Petersburg, Vol. 3: 703 - get paper here
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  • RASTEGAR-POUYANI, NASRULLAH; HAJI GHOLI KAMI, MEHDI RAJABZADEH, SOHEILA SHAFIEI AND STEVEN CLEMENT A 2008. Annotated Checklist of Amphibians and Reptiles of Iran. Iranian Journal of Animal Biosystematics4 (1): 7-30
  • Schweiger, M. 2009. Die Giftschlangen Europas. Eine Übersicht der Arten und Bemerkungen zu einzelnen Taxa. Reptilia (Münster) 14 (76): 14-25 - get paper here
  • Simonov, Evgeniy 2009. Differences in habitat use, daily activity patterns and preferred ambient temperatures of adult and neonate Gloydius halys halys from an isolated population in southwest Siberia: preliminary data. Herpetology Notes 2: 1-7 - get paper here
  • Simonov, Evgeniy 2010. Unusual colour form of Siberian pit viper (Gloydius h. halys) from the northern edge of its area Acta Herpetologica 5 (1): 87-89 - get paper here
  • Simonov, Evgeniy; Michael Wink 2011. Cross-amplification of microsatellite loci reveals multiple paternity in Halys pit viper (Gloydius halys) Acta Herpetologica 6 (2): 289-295 - get paper here
  • Simonov, Evgeniy; Michael Wink 2011. Cross-amplification of microsatellite loci reveals multiple paternity in Halys pit viper (Gloydius halys) Acta Herpetologica 6 (2): 289-295 - get paper here
  • Simonov, Evgeniy; Wink, Michael 2012. Population genetics of the Halys pit viper (Gloydius halys) at the northern distribution limit in Siberia Amphibia-Reptilia 33 (2): 273-283 - get paper here
  • Stejneger, LEONHARD H. 1907. Herpetology of Japan and adjacent territory. Bull. US Natl. Mus. 58: xx, 1-577 - get paper here
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  • Venchi, Alberto and Roberto Sindaco 2006. Annotated checklist of the reptiles of the Mediterranean countries, with keys to species identification. Part 2 -Snakes (Reptilia, Serpentes). Annali del Museo Civico di Storia Naturale "G. Doria", Genova, XCVIII: 259-364
  • Wang, Xiang-jun; Zhao, Er-mi. 2006. A preliminary taxonomic status of Gloydius qinlingensis and G. liupanensis. Sichuan Journal of Zoology 25 (2):210-213. [In Chinese] - get paper here
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  • XU, Yan; Qin LIU, Edward A MYERS, , Lian WANG, Song HUANG, Yun HE,Peihao PENG and Peng GUO<br /> 2012. Molecular Phylogeny of the Genus Gloydius (Serpentes: Crotalinae). Asian Herpetological Research 3 (2): 127–132 - get paper here
 
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