Trimeresurus erythrurus

{{Short description|Species of snake}} {{Speciesbox | image = Trimeresurus erythrurus crotale bambous 41.jpg | image2 = Spot-tailed Pitviper in attack mode.jpg | status = LC | status_system = IUCN3.1 | genus = Trimeresurus | species = erythrurus | authority = ([[Theodore Edward Cantor|Cantor]], 1839) | synonyms = {{Collapsible list| *''Trigonocephalus erythrurus'' Cantor, 1839 *''Trimesurus bicolor'' [[John Edward Gray|Gray]], 1853 *''Trimeresurus erythrurus'' – [[Albert Günther|Günther]], 1864 *''Crotalus Trimeres''[''urus'']. ''erythrurus'' – Higgins, 1873 *''T''[''rimeresurus'']. ''erythrurus'' – [[William Theobald|Theobald]], 1876<ref name=McD99>McDiarmid RW, [[Jonathan A. Campbell|Campbell JA]], Touré T. 1999. ''Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1''. Herpetologists' League. 511 pp. {{ISBN|1-893777-00-6}} (series). {{ISBN|1-893777-01-4}} (volume).</ref> *''Cryptelytrops erythrurus'' – Malhotra & Thorpe, 2004 *''Trimeresurus (Trimeresurus) erythrurus'' – David et al., 2011<ref name=RDB>{{NRDB species |genus=Trimeresurus |species=erythrurus |accessdate=16 November 2020}}</ref> }} }}

'''''Trimeresurus erythrurus''''', [[common name|commonly known]] as the '''red-tailed bamboo pitviper''',<ref name="Gum04">Gumprecht A, Tillack F, [[Nikolai Liutsianovich Orlov|Orlov NL]], [[Ashok Captain|Captain A]], Ryabov S. 2004. ''Asian Pitvipers''. GeitjeBooks. Berlin. 1st Edition. 368 pp. {{ISBN|3-937975-00-4}}.</ref> '''redtail bamboo pit viper''', and '''redtail pit viper''' is a [[venomous snake|venomous]] [[pit viper]] [[species]] found in [[South Asia]] and [[Myanmar]]. No [[subspecies]] are currently recognized.<ref name=RDB/>

==Description== Males grow to a maximum total length {{convert|575|mm}}, of which the tail is {{convert|120|mm}} in length. Females reach a maximum total length of {{convert|1,045|mm}}, with a tail length of {{convert|165|mm}}.<ref name=Lev03>{{cite journal |last1=Leviton |first1=A.E. |last2=Wogan |first2=G.O.U. |last3=Koo |first3=M.S. |last4=Zug |first4=G.R. |last5=Lucas |first5=R.S. |last6=Vindum |first6=J.V. |name-list-style=amp |title=The dangerously venomous snakes of Myanmar. Illustrated checklist with keys |journal=Proceedings of the California Academy of Sciences |year=2003 |volume=54 |issue=24 |pages=407–462 |url=http://researcharchive.calacademy.org/research/scipubs/pdfs/v54/proccas_v54_n24.pdf}}</ref>

Scalation: [[dorsal scales]] in 23–25 longitudinal rows at midbody; first [[upper labial]] partially or completely fused to [[nasal scale|nasal]]; 9–13 [[upper labials]], 1–2 rows of scales separate upper labials from the [[suboculars]]; 11–14 scales in a line between [[supraoculars]]; supraoculars rarely divided; [[temporal scales]] small, strongly keeled; [[ventral scales]]: males 153–174, females: 151–180; [[subcaudals]]: males 62–79, females 49–61, usually paired, occasionally unpaired shields present among paired series.<ref name=Lev03/>

Color pattern: head uniform green, dorsum bright green, light ventrolateral stripe present in males, present or absent in females (Maslin [1942:23] says that the ventrolateral stripe is absent, but [[Malcolm Arthur Smith|M.A. Smith]] [1943:523] states that it is present in males and variable in females), tail spotted with brown; hemipenes without spines.<ref name=Lev03/>

==Geographic range== [[File:MD.Mehedi hasan green pit viper, দাগিলেজা সবুজ ভোরা। ছবিটা.jpg|thumb|Eating a gecko]] Found in eastern [[India]] ([[Assam]], [[Sikkim]], [[Mizoram]], [[Manipur]]), [[Bangladesh]], [[Myanmar]], [[Bhutan]], and [[Nepal]].<ref name=RDB/> The original [[Type locality (biology)|type locality]] given was as "Delta Gangeticum" ([[Ganges Delta]], [[West Bengal]] State, eastern India). The type locality given by [[George Albert Boulenger|Boulenger]] (1896) is "Ganges Delta."<ref name=McD99/>

==References== {{Reflist}}

==Further reading== {{refbegin}} *[[Theodore Edward Cantor|Cantor, T.E.]] 1839. ''Spicilegium serpentium indicorum'' [parts 1 and 2]. Proc. Zool. Soc. London, '''7''': 31–34, 49–55. *Cantor, T.E. 1840. ''Spicilegium Serpentium Indicorum''. Ann. Mag. Nat. Hist. (1) '''4''': 271–279. *Gumprecht, A. 2001. ''Die Bambusottern der Gattung Trimeresurus Lacépède Teil IV: Checkliste der Trimeresurus-Arten Thailands''. Sauria '''23''' (2): 25–32. *Maslin, T. Paul. 1942. Evidence for the Separation of the Crotalid Genera ''Trimeresurus'' and ''Bothrops'', with a Key to the Genus ''Trimeresurus''. Copeia '''1942''' (1): 18–24. *[[Malcolm Arthur Smith|Smith, M.A.]] 1943. ''The Fauna of British India, Ceylon and Burma, Including the Whole of the Indo-Chinese Sub-region. Reptilia and Amphibia. Vol. III.—Serpentes''. Secretary of State for India. (Taylor and Francis, Printers). London. xii + 583 pp. (''Trimeresurus erythrurus'', pp. 522–523.) *Toriba, Michihisa. 1994. Karyotype of Trimeresurus erythrurus. Snake '''26''' (2): 141–143. {{refend}}

[[Category:Trimeresurus|erythrurus]] [[Category:Snakes of Asia]] [[Category:Reptiles described in 1839]] [[Category:Reptiles of Bangladesh]] [[Category:Reptiles of Bhutan]] [[Category:Snakes of India]] [[Category:Snakes of Myanmar]] [[Category:Reptiles of Nepal]] [[Category:Taxa named by Theodore Edward Cantor]]