https://en.bharatpedia.org/w/index.php?action=history&feed=atom&title=Trimeresurus_labialisTrimeresurus labialis - Revision history2026-10-23T08:20:49ZRevision history for this page on the wikiMediaWiki 1.43.6https://en.bharatpedia.org/w/index.php?title=Trimeresurus_labialis&diff=541892&oldid=prevJameshowlett179011: added initial biography needs work2026-04-19T10:33:34Z<p>added initial biography needs work</p>
<p><b>New page</b></p><div>{{Short description|Species of snake}}<br />
{{Speciesbox<br />
| image = <br />
| status = CR<br />
| status_system = IUCN3.1<br />
| status_ref = <ref name="iucn" /><br />
| genus = Trimeresurus<br />
| species = labialis<br />
| authority = [[Franz Steindachner|Steindachner]], 1867<br />
| synonyms = * ''Bothrophis labialis'' <br><small>[[Leopold Fitzinger|Fitzinger]], 1861</small> ''([[nomen nudum]])''<br />
*''Trimeresurus labialis'' <small>Steindachner, 1867</small><br />
*''Trim''[''eresurus'']. ''mutabilis'' <small>[[Ferdinand Stoliczka|Stoliczka]], 1870</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><br />
*''Trimeresurus labialis'' <br><small>— [[Malcolm Arthur Smith|M.A. Smith]], 1943</small><br />
*''Cryptelytrops labialis'' <br><small>— Malhotra & Thorpe, 2004</small><br />
*''Trimeresurus (Trimeresurus) labialis'' <br><small>— David et al., 2011</small><ref>"''Trimeresurus labialis'' ". The Reptile Database. www.reptile-database.org.</ref><br />
}}<br />
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'''''Trimeresurus labialis''''', commonly called '''''Nicobar bamboo pit viper''''',<ref name=Gum04>Gumprecht A, Tillack F, [[Nikolai Liutsianovich 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> is a [[venomous snake|venomous]] [[pit viper]] [[species]] [[Endemism|endemic]] to the [[Nicobar Islands]] of [[India]]. No [[subspecies]] are currently recognized. Based on IUCN assessment in 2021, this viper is classified as [[critically endangered]].<ref name=ITIS>{{ITIS|id=634920|taxon=''Trimeresurus labialis ''|accessdate=27 September 2006}}</ref><ref name="iucn">{{Cite report |url=https://www.iucnredlist.org/species/194061/2295688 |title=Trimeresurus labialis: Mohapatra, P.: The IUCN Red List of Threatened Species 2021: e.T194061A2295688 |last=IUCN |date=2019-09-07 |publisher=International Union for Conservation of Nature |doi=10.2305/iucn.uk.2021-3.rlts.t194061a2295688.en |language=en}}</ref><br />
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==Geographic range==<br />
Found only in the [[Nicobar Islands]] of [[India]]. The [[Type locality (biology)|type locality]] given is ''"den Nikobaren"''.<ref name=McD99/><br />
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==Description==<br />
Males may attain a total length of {{cvt|42|cm}}, with a tail {{cvt|8|cm}} long; females, total length {{cvt|44|cm}}, tail {{cvt|7|cm}}.<br />
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Dorsally, ''T. labialis'' is brown, either light or dark, with or without darker spots or transverse bars. It may have a light streak on each side of the head, beginning at the snout, continuing under the eye, to the neck. Ventrally, it is also brown.<br />
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The dorsal scales are smooth, and are usually in 23 rows at midbody. Ventrals: 158-170 in males; 154-174 in females. Subcaudals: 60-65 in males; 46-57 in females. The subcaudals are usually double, but there may be some interspersed singles.<ref>[[Malcolm Arthur Smith|Smith MA]] (1943). ''The Fauna of British India, Ceylon and Burma, Including the Whole of the Indo-Chinese Sub-region. Reptilia and Amphibia. Vol. III.&mdash;Serpentes''. London: Secretary of State for India. (Taylor and Francis, Printers). xii + 583 pp. (''Trimeresurus labialis'', pp. 525-526).</ref><br />
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==References==<br />
{{Reflist}}<br />
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==Further reading==<br />
{{refbegin}}<br />
*Das I (1999). "Biogeography of the amphibians and reptiles of the Andaman and Nicobar Islands, India". pp.&nbsp;43–77. '''''In'':''' Ota H (editor) (1999). ''Tropical Island Herpetofauna ...'' Amsterdam: Elsevier. 353 pp. {{ISBN|978-0444501950}}.<br />
*[[Franz Steindachner|Steindachner, F]] (1867). "''Reptilien'' ". pp.&nbsp;1–98. '''''In'':''' [[Bernhard von Wüllerstorf-Urbair|von Wüllerstorf-Urbair B]] (1867) ["1869" on title page]. ''Reise der Österreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commodore B. von Wüllerstorf-Urbair (Zoologie)'', [Vol. 1, part 3]. Vienna: K. Gerold's Sohn/Kaiserlich-Königl. Hof- und Staatsdruckerei. (''Trimeresurus labialis'', new species, p. 86 + Plate III, figures 1 & 2) (in German). <br />
*[[Ferdinand Stoliczka|Stoliczka F]] (1870). "Observations on some Indian and Malayan Amphibia and Reptilia". ''Ann. Mag. Nat. Hist., Fourth Series'' '''6''': 105-109. (''Trimeresurus mutabilis'', new species, p.&nbsp;108).<br />
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==External links==<br />
*{{NRDB species|genus=Trimeresurus|species=labialis|date=28 November|year=2012}}<br />
{{Trimeresurus}}<br />
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{{Taxonbar|from=Q3007690}}<br />
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[[Category:Reptiles described in 1867]]<br />
[[Category:Endemic fauna of the Nicobar Islands]]<br />
[[Category:Snakes of India]]<br />
[[Category:Trimeresurus|labialis]]<br />
[[Category:Taxa named by Franz Steindachner]]</div>Jameshowlett179011