{{Short description|Species of snake}} {{Speciesbox | image = Trimeresurus truongsonensis.jpg | status = EN | status_system = IUCN3.1 | status_ref = <ref name=IUCN>{{cite journal | author = Stuart, B. | author2 = Grismer, L. | author3 = Nguyen, T.Q. | title = ''Viridovipera truongsonensis'' | journal = [[IUCN Red List of Threatened Species]] | volume= 2012 | page = e.T191947A2019629 | year = 2012 | doi = 10.2305/IUCN.UK.2012-1.RLTS.T191947A2019629.en | doi-access = free }}</ref> | genus = Trimeresurus | species = truongsonensis | authority = [[Nikolai Liutsianovich Orlov|Orlov]], Ryabov, Thanh & H. Cuc, 2004 | synonyms = ''Viridovipera truongsonensis'' <small>(Orlov, Ryabov, Thanh & H. Cuc, 2004)</small> }}
'''''Trimeresurus truongsonensis''''' is a [[venomous snake|venomous]] [[Crotalinae|pitviper]] [[species]] [[endemic]] to Vietnam.<ref name=IUCN/><ref name=RDB/> Its common names are '''Truong Son pit viper'''<ref name=IUCN/> and '''Quang Binh pitviper'''.<ref name=RDB/>
==Geographic range== This species is known with certainty only from the [[Phong Nha-Ke Bang National Park]], [[Quang Binh province]], in the [[Annamite Mountains]] of central Vietnam.<ref name=IUCN/>
==Habitat== This species is found in evergreen tropical forests at elevations of {{convert|500|–|600|m|abbr=on}} [[above sea level]]. These secretive snakes are mostly seen when basking following strong rains.<ref name=IUCN/>
==Reproduction== ''Trimeresurus truongsonensis'' is [[viviparous]].<ref name=RDB/>
==References== {{Reflist|refs= <ref name=RDB>{{NRDB species|genus=Trimeresurus |species=truongsonensis |accessdate=2 February 2017}}</ref> }}
{{Taxonbar|from=Q5120678}}
[[Category:Trimeresurus|truongsonensis]] [[Category:Endemic reptiles of Vietnam]] [[Category:Reptiles described in 2004]] [[Category:Snakes of Vietnam]] [[Category:Taxa named by Nikolai Loutseranovitch Orlov]]
{{snake-stub}}