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Trimeresurus sichuanensis (GUO & WANG, 2011)

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Higher TaxaViperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Sichuan pitviper
Chinese: 四川华蝮 
SynonymSinovipera sichuanensis GUO & WANG 2011
Trimeresurus stejnegeri — ZHAO et al. 2002: 233 (non Trimeresurus stejnegeri SCHMIDT 1925)
Trimeresurus (Sinovipera) sichuanensis — DAVID et al. 2011
Sinovipera sichuanensis — WALLACH et al. 2014: 678
Trimeresurus sichuanensis — GAO et al. 2022
Trimeresurus (Sinovipera) sichuanensis— MIRZA et al. 2023 
DistributionChina (Sichuan, Hunan)

Type locality: Hejiang County, Sichuan Province, China  
Reproductionviviparous (phylogenetic imputation, fide Zimin et al. 2022) 
TypesHolotype: YBU 071077, an adult female (Figs. 3–4). It was collected near a small river in the forest by a local farmer at an elevation of 1000 m above sea level in August 2007. The specimen is deposited in Yibin University. Paratype: YBU030116, adult female (Figs. 5–6). Collected in July 2003, from the same locality, and by the same farmer, as that of the holotype. 
DiagnosisDiagnosis (genus Sinovipera and species): A genus of Asian pitviper within Trimeresurus (sensu lato) having the following combination of characters: (1) the first supralabial completely separated from the nasal; (2) a uniform green dorsum without postocular streak and ventrolateral stripes in females; (3) eyes deep red in females; (4) tail prehensile, its end rusty red in upper part; (5) large body size, with the maximum total length exceeding 1000 mm in females. 

Type species: Sinovipera sichuanensis is the type species of the genus Sinovipera GUO & WANG 2011.

Conservation: one of the 30 most endangered viper species (Maritz et al. 2016).

Habitat: partly arboreal (Harrington et al. 2018). 
EtymologyThe generic nomen Sinovipera is derived from the modern Latin adjective sinicus (a, um), based on the noun Sina (-ae), “China”, and the Latin noun Vipera (-ae), meaning '“a viper”. the species eptithet refers to the type locality in Sichuan Province. 
  • 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
  • GAO, ZHIWEI; TIANYU QIAN, JIANPING JIANG, DEJIA HOU, XUEJIAN DENG & DAODE YANG. 2022. Species diversity and distribution of amphibians and reptiles in Hunan Province, China. Biodiversity Science 30 (2): 21290, 1–15 - get paper here
  • Gumprecht, Andreas 2012. Aktuelles zur Taxonomie und Systematik asiatischer Grubenottern. Terraria-Elaphe 2012 (1): 52-61 - get paper here
  • GUO, PENG; & YUEZHAO WANG 2011. A new genus and species of cryptic Asian green pitviper (Serpentes: Viperidae: Crotalinae) from southwest China. Zootaxa 2918: 1–14 - get paper here
  • 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
  • Maritz, Bryan; Johannes Penner, Marcio Martins, Jelka Crnobrnja-Isailović, Stephen Spear, Laura R.V. Alencar, Jesús Sigala-Rodriguez, Kevin Messenger, Rulon W. Clark, Pritpal Soorae, Luca Luiselli, Chris Jenkins, Harry W. Greene 2016. Identifying global priorities for the conservation of vipers. Biological Conservation, doi:10.1016/j.biocon.2016.05.004 - 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
  • 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.
  • Wang, Kai; Jinlong Ren, Hongman Chen, Zhitong Lyu, Xianguang Guo Ke Jiang, Jinmin Chen, Jiatang Li, Peng Guo, Yingyong Wang, Jing Che 2020. The updated checklists of amphibians and reptiles of China. Biodiversity Science 28 (2): 189-218 - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
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