View source for Gloydius intermedius

{{italic title}}
{{Speciesbox
 | name                = ''Gloydius intermedius''
 | taxon            = Gloydius intermedius
 | authority  = ([[Alexander Strauch|Strauch]], 1868)
 | synonyms            = * ''Trigonocephalus halys'' <br><small>&ndash; [[Édouard Ménétries|Ménétries]], 1832</small> (part)
* ''Trigonocephalus blomhoffii'' <br><small>&ndash; [[Richard Maack|Maack]], 1859</small> (part)
* ''Trigonocephalus affinis'' <br><small>&ndash; [[Albert Günther|Günther]], 1860</small> (part)
* '''''Trigonocephalus intermedius'' <small>[[Alexander Strauch|Strauch]], 1868</small>'''
* ''Halys intermedius'' <br><small>&ndash; [[Wilhelm Peters|W. Peters]], 1877</small>
* ''Ancistrodon intermedius'' <br><small>&ndash; [[George Albert Boulenger|Boulenger]], 1896</small>
* ''Agkistrodon blomhoffii intermedius'' <small>&ndash; [[Leonhard Hess Stejneger|Stejneger]], 1907</small>
* ''Ancistrodon blomhoffii intermedius'' <small>&ndash; Despax, 1913</small>
* ''Ancistrodon halys intermedius'' <small>&ndash; [[Alexander Mikhailovich Nikolsky|Nikolski]], 1916</small>
* ''Agkistrodon halys intermedius'' <small>&ndash; Stejneger, 1925</small>
* ''Ankistrodon halys intermedius'' <small>&ndash; Pavloff, 1926</small>
* ''Agkistrodon intermedius'' <br><small>&ndash; [[Franz Werner|F. Werner]], 1929</small>
* ''Ancistrodon halys intermedius viridis'' <br><small>&ndash; Pavloff, 1932</small> <br>''([[nomen illegitimum]])''
* ''Gloydius halys intermedius'' <br><small>&ndash; [[:fr:Alphonse Richard Hoge|Hoge]] & Romano-Hoge, 1981</small>
* ''Agkistrodon intermedius intermedius'' <br><small>&ndash; [[Howard K. Gloyd|Gloyd]] & [[Roger Conant (herpetologist)|Conant]], 1982</small>
* ''Gloydius intermedius'' <br><small>&ndash; Kraus, Mink & Brown, 1996</small><ref name="McD99">[[:fr:Roy Wallace McDiarmid|McDiarmid RW]], [[Jonathan A. Campbell|Campbell JA]], Touré TA (1999). ''Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1''. Washington, District of Columbia: Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).</ref>
}}

:'''''Common names:''' Central Asian pit viper, intermediate mamushi, Mongolian pit viper,<ref name="G&C90">[[Howard K. Gloyd|Gloyd HK]], [[Roger Conant (herpetologist)|Conant R]] (1990). ''Snakes of the ''Agkistrodon'' Complex: A Monographic Review''. Society for the Study of Amphibians and Reptiles. 614 pp. 52 plates. LCCN 89-50342. ISBN 0-916984-20-6.</ref> [[#Common names|more]].''

'''''Gloydius intermedius''''' is a [[venomous snake|venomous]] [[Crotalinae|pitviper]] [[species]] [[Endemism|endemic]] to northern [[Asia]]. Three [[subspecies]] are currently recognized, including the [[Subspecies#Nominate subspecies|nominate subspecies]] described here.<ref name="ITIS">{{ITIS |id=634887 |taxon=''Gloydius intermedius'' |accessdate=8 August 2008}}</ref>

==Description==
[[Howard K. Gloyd|Gloyd]] and [[Roger Conant (herpetologist)|Conant]] (1990) reported examining subadults and adults that were {{convert|33.5|–|71|cm|in|abbr=on}} in total length. [[Alexander Mikhailovich Nikolsky|Nikolsky]] (1916) mentioned that some individuals may reach as much as {{convert|78|cm|in|round=0.5|abbr=on}} in total length. The body is relatively stout, and the snout is not upturned.<ref name="G&C90"/>

The scalation includes 7 [[supralabial scales]], 23 rows of keeled [[dorsal scales]] at midbody, 149-165 [[ventral scales]], and 32-48 [[subcaudal scales]].<ref name="G&C90"/>

The color pattern is variable, but generally consists of 28-45 dark subquadrate dorsal blotches or crossbands that usually extend down the flanks as far as the first or second scale rows. Between these blotches are irregular light areas. A dark brown to black postorbital stripe is present, extending from the eye back to the angle of the jaw, outlined by a light line above, and by cream-colored supralabial scales below.<ref name="G&C90"/>

==Common names==
Central Asian pit viper, intermediate mamushi, Mongolian pit viper,<ref name="G&C90"/> Central Asian pitviper.<ref name="Gum04">Gumprecht A, Tillack F, [[:fr:Nikolaï Orlov|Orlov NL]], [[Ashok Captain|Captain A]], Ryabov S (2004). ''Asian Pitvipers''. First Edition. Berlin: Geitje Books. 368 pp. ISBN 3-937975-00-4.</ref>

==Geographic range==
Found in southeastern [[Azerbaijan]], northern [[Iran]], southern [[Turkmenistan]], northwestern [[Afghanistan]], southern [[Russia]], northwestern [[China]] and [[Mongolia]]. The [[Type locality (biology)|type locality]] given by Stejneger (1907) is "Governm. [[Irkutsk]], East [[Siberia]]." Golay ''et al.'' (1993) give "Yesso (= Esso) Island, banks of [[Amur River]] and Khinggan (= Hinggan Ling) Mountain Range."<ref name="McD99"/>

==Subspecies==
{|cellspacing=0 cellpadding=2 border=1 style="border-collapse: collapse;"
!bgcolor="#f0f0f0"|Subspecies<ref name="ITIS"/>
!bgcolor="#f0f0f0"|Taxon author<ref name="ITIS"/>
!bgcolor="#f0f0f0"|Common name<ref name="G&C90"/>
!bgcolor="#f0f0f0"|Geographic range<ref name="G&C90"/>
|-
|''[[Gloydius intermedius caucasicus|G. i. caucasicus]]''
|([[Alexander Mikhailovich Nikolsky|Nikolsky]], 1916)
|Caucasian pit viper
|style="width:40%"|Mostly in the mountainous regions southwest, south and southeast of the [[Caspian Sea]]. Also in southeastern [[Azerbaijan]], southern [[Turkmenistan]], northern [[Iran]] and extreme northwestern [[Afghanistan]]. Elevational range is from below sea level (near the southern shore of the [[Caspian Sea]]) to at least 3,000 m in the high Lar Valley in the [[Alborz|Elburz]] mountains of northern Iran.
|-
|''G. i. intermedius''
|([[Alexander Strauch|Strauch]], 1868)
|Central Asian pit viper
|[[Central Asia]] from [[Kyrgyzstan]], eastern [[Kazakhstan]] and [[Xinjiang|Sinkiang]] (in [[China]]) to [[Mongolia]] and southern [[Siberia]] east to the western slopes of the Greater Khinghan Mountain Range and the Torey Lakes region near the common border of China, Mongolia and [[Russia]].
|-
|''[[Gloydius intermedius stejnegeri|G. i. stejnegeri]]''
|([[:fr:Hialmar Rendahl|Rendahl]], 1933)
|Gobi pit viper
|The edge of the [[Gobi Desert]] in southeastern [[Inner Mongolia]] south into [[China]] as far as northern [[Shanxi|Shansi]] and [[Hebei|Hopeh]].
|-
|}

==Etymology==
The [[Subspecies|subspecific name]], ''stejnegeri'', is in honor of Norwegian-born American herpetologist [[Leonhard Stejneger]].<ref>Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (''Gloydius intermedius stejnegeri'', p. 253).</ref>

==See also==
* [[List of crotaline species and subspecies]]
* {{c|Crotalinae by common name}}
* {{c|Crotalinae by taxonomic synonyms}}
* [[Snakebite]]

==References==
{{reflist}}

==External links==
* {{NRDB species|genus=Gloydius|species=intermedius|date=8 August|year=2008}}

[[Category:Gloydius]]
[[Category:Reptiles of Afghanistan]]
[[Category:Reptiles of Azerbaijan]]
[[Category:Snakes of China]]
[[Category:Reptiles of Kazakhstan]]
[[Category:Reptiles of Kyrgyzstan]]
[[Category:Reptiles of Mongolia]]
[[Category:Reptiles of Russia]]
[[Category:Animals described in 1868]]