# Trimeresurus erythrurus

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Species of snake

Trimeresurus erythrurus Conservation status Least Concern (IUCN 3.1) Scientific classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Suborder: Serpentes Family: Viperidae Genus: Trimeresurus Species: T. erythrurus Binomial name Trimeresurus erythrurus (Cantor, 1839) Synonyms List Trigonocephalus erythrurus Cantor, 1839 Trimesurus bicolor Gray, 1853 Trimeresurus erythrurus – Günther, 1864 Crotalus Trimeres[urus]. erythrurus – Higgins, 1873 T[rimeresurus]. erythrurus – Theobald, 1876[1] Cryptelytrops erythrurus – Malhotra & Thorpe, 2004 Trimeresurus (Trimeresurus) erythrurus – David et al., 2011[2]

***Trimeresurus erythrurus***, [commonly known](/source/Common_name) as the **red-tailed bamboo pitviper**,[3] **redtail bamboo pit viper**, and **redtail pit viper** is a [venomous](/source/Venomous_snake) [pit viper](/source/Pit_viper) [species](/source/Species) found in [South Asia](/source/South_Asia) and [Myanmar](/source/Myanmar). No [subspecies](/source/Subspecies) are currently recognized.[2]

## Description

Males grow to a maximum total length 575 millimetres (22.6 in), of which the tail is 120 millimetres (4.7 in) in length. Females reach a maximum total length of 1,045 millimetres (41.1 in), with a tail length of 165 millimetres (6.5 in).[4]

Scalation: [dorsal scales](/source/Dorsal_scales) in 23–25 longitudinal rows at midbody; first [upper labial](/source/Upper_labial) partially or completely fused to [nasal](/source/Nasal_scale); 9–13 [upper labials](/source/Upper_labials), 1–2 rows of scales separate upper labials from the [suboculars](/source/Suboculars); 11–14 scales in a line between [supraoculars](/source/Supraoculars); supraoculars rarely divided; [temporal scales](/source/Temporal_scales) small, strongly keeled; [ventral scales](/source/Ventral_scales): males 153–174, females: 151–180; [subcaudals](/source/Subcaudals): males 62–79, females 49–61, usually paired, occasionally unpaired shields present among paired series.[4]

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 [M.A. Smith](/source/Malcolm_Arthur_Smith) [1943:523] states that it is present in males and variable in females), tail spotted with brown; hemipenes without spines.[4]

## Geographic range

Eating a gecko

Found in eastern [India](/source/India) ([Assam](/source/Assam), [Sikkim](/source/Sikkim), [Mizoram](/source/Mizoram), [Manipur](/source/Manipur)), [Bangladesh](/source/Bangladesh), [Myanmar](/source/Myanmar), [Bhutan](/source/Bhutan), and [Nepal](/source/Nepal).[2] The original [type locality](/source/Type_locality_(biology)) given was as "Delta Gangeticum" ([Ganges Delta](/source/Ganges_Delta), [West Bengal](/source/West_Bengal) State, eastern India). The type locality given by [Boulenger](/source/George_Albert_Boulenger) (1896) is "Ganges Delta."[1]

## References

1. ^ [***a***](#cite_ref-McD99_1-0) [***b***](#cite_ref-McD99_1-1) McDiarmid RW, [Campbell JA](/source/Jonathan_A._Campbell), Touré T. 1999. *Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1*. Herpetologists' League. 511 pp. [ISBN](/source/ISBN_(identifier)) [1-893777-00-6](https://en.wikipedia.org/wiki/Special:BookSources/1-893777-00-6) (series). [ISBN](/source/ISBN_(identifier)) [1-893777-01-4](https://en.wikipedia.org/wiki/Special:BookSources/1-893777-01-4) (volume).

1. ^ [***a***](#cite_ref-RDB_2-0) [***b***](#cite_ref-RDB_2-1) [***c***](#cite_ref-RDB_2-2) [*Trimeresurus erythrurus*](http://reptile-database.reptarium.cz/species.php?genus=Trimeresurus&species=erythrurus) at the [Reptarium.cz Reptile Database](http://reptile-database.reptarium.cz/). Accessed 16 November 2020.

1. **[^](#cite_ref-Gum04_3-0)** Gumprecht A, Tillack F, [Orlov NL](/source/Nikolai_Liutsianovich_Orlov), [Captain A](/source/Ashok_Captain), Ryabov S. 2004. *Asian Pitvipers*. GeitjeBooks. Berlin. 1st Edition. 368 pp. [ISBN](/source/ISBN_(identifier)) [3-937975-00-4](https://en.wikipedia.org/wiki/Special:BookSources/3-937975-00-4).

1. ^ [***a***](#cite_ref-Lev03_4-0) [***b***](#cite_ref-Lev03_4-1) [***c***](#cite_ref-Lev03_4-2) Leviton, A.E.; Wogan, G.O.U.; Koo, M.S.; Zug, G.R.; Lucas, R.S. & Vindum, J.V. (2003). ["The dangerously venomous snakes of Myanmar. Illustrated checklist with keys"](http://researcharchive.calacademy.org/research/scipubs/pdfs/v54/proccas_v54_n24.pdf) (PDF). *Proceedings of the California Academy of Sciences*. **54** (24): 407–462.

## Further reading

- [Cantor, T.E.](/source/Theodore_Edward_Cantor) 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.

- [Smith, M.A.](/source/Malcolm_Arthur_Smith) 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.

v t e Snakes in the genus Trimeresurus Trimeresurus albolabris Trimeresurus ayerwadyensis Trimeresurus borneensis Trimeresurus brongersmai Trimeresurus cantori Trimeresurus erythrurus Trimeresurus fasciatus Trimeresurus flavomaculatus Trimeresurus gracilis Trimeresurus gramineus Trimeresurus hageni Trimeresurus kanburiensis Trimeresurus karanshahi Trimeresurus labialis Trimeresurus purpureomaculatus Trimeresurus salazar Trimeresurus stejnegeri Trimeresurus sumatranus Trimeresurus tibetanus Trimeresurus trigonocephalus

Taxon identifiers Trimeresurus erythrurus Wikidata: Q3010245 Wikispecies: Trimeresurus erythrurus ADW: Trimeresurus_erythrurus CoL: 7CTNR EoL: 461445 GBIF: 2444110 iNaturalist: 146507 ITIS: 634910 IUCN: 178732 NCBI: 109779 Open Tree of Life: 184465 RD: erythrurus Trigonocephalus erythrurus Wikidata: Q28320220 IRMNG: 10518736 ITIS: 1058677

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Adapted from the Wikipedia article [Trimeresurus erythrurus](https://en.wikipedia.org/wiki/Trimeresurus_erythrurus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Trimeresurus_erythrurus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.