Trimeresurus guoi CHEN, SHI, VOGEL & DING, 2021

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Higher Taxa	Viperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Guo’s green pit viper Chinese: Diān Nán Zhú Yè Qīng (滇南竹叶青)
Synonym	Trimeresurus guoi CHEN, SHI, VOGEL & DING 2021 Trimeresurus albolabris – ZHU et al. 2016 Trimeresurus (Trimeresurus) guoi— MIRZA et al. 2023
Distribution	China (Yunnan), Vietnam (Lao Cai), Thailand (Loei and Pha Yao) and Myanmar (Mon State) Type locality: Jiangcheng County, Yunnan Province,China (22.5738°N, 101.6095° E)
Reproduction
Types	Holotype: YNJC0012 adult male, a roadkill, collected by Ding Li, on 9 September 2019 Paratypes: (n = 9): CIB
Diagnosis	Diagnosis: (1) Dorsal body jungle-green with faint transverse dark bands on skin, ventral body yellow green. (2) Lateral head jungle-green above lower margin of eyes, and green yellow below, without postocular stripes. (3) Ventrolateral line of male yellow-green, narrow, only present on outermost row of dorsal scales. (4) Iris firebrick-red in both sexes. (5) First supralabial fused with nasal. (6) Head scales feebly keeled; dorsal scale row 23-21-15 (N = 10), feebly keeled except the outermost rows;ventral scale 154–163 in males (N = 6), 158–160 in females (N =3); subcaudal scale 58–72 in males (N = 7), 52–59 in females (N= 3). (7) Hemipenes long, reaching 23rd/32nd subcaudals when unextruded/extruded, papillae relatively weak and sparse. (CHEN et al. 2021). Additional details (1184 characters) are available for collaborators and contributors. Please contact us for details.
Comment	Distribution: See map in Vogel et al. 2023: 529 (Fig. 5) for localities.
References	CHEN, Zening; Shengchao SHI, Jun GAO, Gernot VOGEL, Zhaobin SONG, Li DING, Rong DAI 2021. A New Species of Trimeresurus Lacépède, 1804 (Squamata: Viperidae) from Southwestern China, Vietnam, Thailand and Myanmar. Asian Herpetological Research 12 (2): 167－177 - 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 VOGEL, GERNOT; TAN VAN NGUYEN, & PATRICK DAVID 2023. A new green pitviper of the Trimeresurus albolabris complex (Reptilia, Serpentes, Viperidae) from central and southern Myanmar. Zootaxa 5357 (4): 515–554 - get paper here Wang K, Lyu ZT, Wang J, Qi S, Che J 2022. Updated Checklist and Zoogeographic Division of the Reptilian Fauna of Yunnan Province, China. Biodiversity Science 30 (4): 21326, 1–31 - get paper here Zhu, Fei; Qin Liu, Jing Che, Liang Zhang, Xin Chen, Fang Yan, Robert Murphy, Cong Guo and Peng Guo 2016. Molecular phylogeography of white-lipped tree viper (Trimeresurus; Viperidae). Zoologica Scripta DOI: 10.1111/zsc.12156 - get paper here
External links	National Center for Biotechnology Information http://zoobank.org/urn:lsid:zoobank.org:pub:103364A6-75A4-435E-B1A4… https://www.facebook.com/groups/stshc/posts/556169779940958/ Google images

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