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Trimeresurus venustus VOGEL, 1991

IUCN Red List - Trimeresurus venustus - Vulnerable, VU
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Higher TaxaViperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Beautiful pitviper, Brown-spotted Pit Viper
G: Schöne Bambusotter 
SynonymTrimeresurus venustus VOGEL 1991
Trimeresurus venustus — WELCH 1994: 117
Trimeresurus venustus — MANTHEY & GROSSMANN 1997: 411
Trimeresurus venustus — GUMPRECHT et al. 2004
Trimeresurus venustus — DAVID et al. 2004
Cryptelytrops venustus — MALHOTRA & THORPE 2004
Trimeresurus (Trimeresurus) venustus — DAVID et al. 2011
Trimeresurus venustus — LIVIGNI 2013: 396
Trimeresurus venustus — WALLACH et al. 2014: 743
Cryptelytrops venustus — CHAN-ARD et al. 2015: 287
Trimeresurus (Trimeresurus) venustus— MIRZA et al. 2023 
DistributionS Thailand

Type locality: “Thung Song, Provinz Nakhon Si Thammarat, Süd-Thailand”  
Reproductionovoviviparous 
TypesHolotype: ZMB 48045; Paratypes: ZMB, BMNH; ZSM 127/1990 (given as ZSM 127.1990 in the original description), male, “Thung Song, Provinz Nakhon Si Thammarat, Süd-Thailand”, collected by J. Krimmer, no date; ZSM 128/1990 (given as ZSM 128.1990 in the original description), adult, same locality, collected by G. Vogel, 09.1989. 
DiagnosisUnfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 1372 characters), are available for collaborators and contributors. Please contact us for details. 
CommentVenomous!

Synonymy: Regarded as a synonym of Trimeresurus kanburiensis Smith, 1943 by McDiarmid et al. (1999). Older literature references to T. kanburiensis are likely to refer in fact to this taxon.

Similar species: Closely related to C. macrops.

Habitat: fully arboreal (Harrington et al. 2018).

Distribution: see map in Sumontha et al. 2021: 318 (Fig. 7), Pawangkhanant et al. 2025: 2 (Fig 1), Pawangkhanant et al. 2025 (516 (Fig. 1). 
EtymologyFrom the Latin venustus (beautiful) in allusion to the bold complex colour pattern.  
References
  • Chan-ard, T., Parr, J.W.K. & Nabhitabhata, J. 2015. A field guide to the reptiles of Thailand. Oxford University Press, NY, 352 pp. [see book reviews by Pauwels & Grismer 2015 and Hikida 2015 for corrections] - get paper here
  • CHEN, ZENING; JIANPING YU, GERNOT VOGEL, SHENGCHAO SHI, ZHAOBIN SONG, YEZHONG TANG, JIA YANG, LI DING, CANGSONG CHEN 2020. A new pit viper of the genus Trimeresurus (Lacépède, 1804) (Squamata: Viperidae) from Southwest China. Zootaxa 4768 (1): 112–128 - get paper here
  • David, P., G. Vogel, M. Sumontha, O. S. G. Pauwels & L. Chanhome 2004. Expanded description of the poorly known pitviper Trimeresurus kanburiensis Smith, 1943, with confirmation of the validity of Trimeresurus venustus Vogel, 1991. Russ. J. Herpetol. 11 (2): 81-9 - get paper here
  • DAVID, PATRICK; GERNOT VOGEL & ALAIN DUBOIS 2011. On the need to follow rigorously the Rules of the Code for the subsequent designation of a nucleospecies (type species) for a nominal genus which lacked one: the case of the nominal genus Trimeresurus Lacépède, 1804 (Reptilia: Squamata: Viperidae). Zootaxa 2992: 1–51 - get paper here
  • Grismer, L. Lee; Tri, Ngo Van; Grismer, Jesse L. 2008. A new species of insular pitviper of the genus Cryptelytrops (Squamata: Viperidae) from southern Vietnam. Zootaxa 1715: 57-68 - get paper here
  • Gumprecht, A.; Tillack, F.; Orlov, N.L.; Captain, A. & Ryabow, S. 2004. Asian pitvipers. Geitje Books, Berlin, 368 pp.
  • Harrington, Sean M; Jordyn M de Haan, Lindsey Shapiro, Sara Ruane 2018. Habits and characteristics of arboreal snakes worldwide: arboreality constrains body size but does not affect lineage diversification. Biological Journal of the Linnean Society 125 (1): 61–71 - get paper here
  • Idiiatullina SS, Pawangkhanant P, Tawan T, Worranuch T, Dechochai B, Suwannapoom C, Nguyen TV, Chanhome L, Poyarkov NA 2023. Limestone jewel: A new colourful karst-dwelling pitviper (Serpentes: Viperidae: Trimeresurus) from the poorly explored borderlands of southern peninsular Thailand. Vertebrate Zoology 73: 697-716 - get paper here
  • Idiiatullina, S. S., Pawangkhanant, P., Suwannapoom, C., Tawan, T., Chanhome, L., Van Nguyen, T., ... & Poyarkov, N. A. 2024. Another new species of karst-associated pitviper (Serpentes, Viperidae: Trimeresurus) from the Isthmus of Kra, Peninsular Thailand. European Journal of Taxonomy, 930, 20-52 - get paper here
  • JUSTINEK, UWE 2020. Gefahrtierschulung – Ein Erfahrungsbericht. Ophidia 14 (1): 27-30
  • Laita, Mark 2013. Serpentine. Abrams and PQ Blackwell, Auckland, New Zealand, 200 unnumbered pages
  • LiVigni, F. (ed.) 2013. A Life for Reptiles and Amphibians, Volume 1. Chimaira, Frankfurt, 495 pp. - get paper here
  • Malhotra, A. & R. S. Thorpe 2004. Reassessment of the validity and diagnosis of the pitviper Trimeresurus venustus Vogel, 1991. The Herpetological Journal 14 (1): 21-33 - get paper here
  • Malhotra, Anita & Thorpe, Roger S. 2004. A phylogeny of four mitochondrial gene regions suggests a revised taxonomy for Asian pitvipers (Trimeresurus and Ovophis). Molecular Phylogenetics and Evolution 32: 83 –100 [erratum p. 680] - get paper here
  • Manthey, U. & Grossmann, W. 1997. Amphibien & Reptilien Südostasiens. Natur und Tier Verlag (Münster), 512 pp. (ISBN 3-931587-12-6) - get paper here
  • Mirza ZA, H. T. Lalremsanga, Bhosale H, Gowande G, Patel H, Idiatullina SS, Poyarkov NA 2023. Systematics of Trimeresurus popeiorum Smith, 1937 with a revised molecular phylogeny of Asian pitvipers of the genus Trimeresurus Lacépède, 1804 sensu lato. Evolutionary Systematics 7(1): 91-104 - get paper here
  • Orlov, N. L., S. A. Ryabov, B. N. Thanh & H Cuc, T. 2004. A new species of Trimeresurus (Ophidia: Viperidae: Crotalinae) from Karst region in Central Vietnam. Russ. J. Herpetol. 11 (2): 139-149 - get paper here
  • Pawangkhanant P. et al. 2025. A snake can change its finery: a new cryptic species of the Trimeresurus kanburiensis complex (Reptilia: Serpentes: Viperidae) from central Thailand with an unusual ontogenetic color change. Zootaxa, 5621(5): 514-546 - get paper here
  • Pawangkhanant, P., Idiiatullina, S. S., Smits, T., Dugdale, I., Pierce, A., Suwannapoom, C., & Poyarkov, N.A. 2025. A NEW SPECIES OF KARST-ASSOCIATED PITVIPER OF THE Trimeresurus kanburiensis COMPLEX (SQUAMATA: VIPERIDAE) FROM EASTERN THAILAND. TAPROBANICA 14 (1): 1–15 - get paper here
  • SUMONTHA, MONTRI; SUNUTCHA SUNTRARACHUN, OLIVIER S. G. PAUWELS, PARINYA PAWANGKHANANT, NIRUT CHOMNGAM, PRAPANTH IAMWIRIYAKUL & LAWAN CHANHOME 2021. A new karst-dwelling, colorful pitviper (Viperidae: Trimeresurus) from northern Peninsular Thailand. Zootaxa 4974 (2): 307–332 - get paper here
  • Thakur, S., Giri, S., Lalremsenga, H. T., & Doley, R. 2024. Indian green pit vipers: A lesser-known snake group of north-east India. Toxicon, 107689 - get paper here
  • Vogel G 1991. Eine neue Trimeresurus-Art aus Thailand, Trimeresurus venustus sp. nov. (Reptilia: Serpentes: Crotalidae). Sauria 13 (1): 23-28 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
  • Welch, K. R. G. 1994. Snakes of the World. A Checklist. I. Venomous snakes. KCM Books, Somerset, England.
 
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