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Hebius weixiensis HOU, YUAN, WEI, ZHAO, LIU, WU, SHEN, CHEN, GUO & CHE, 2021

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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common NamesE: Weixi Keelback Snake
Chinese: 维西腹链蛇 (Wei Xi Fu Lian She) 
SynonymHebius weixiensis HOU, YUAN, WEI, ZHAO, LIU, WU, SHEN, CHEN, GUO & CHE 2021 
DistributionChina (Yunnan: Weixi County and Shigu Township in Lijiang)

Type locality: Shang Village (N27.130267°, E99.326753°; 2 426 m a.s.l.), Weixi County, Yunnan Province, China.  
TypesHolotype: KIZ 035739, adult male, collected by S.B. Hou and P.F. Wei on 19 June 2019.
Paratypes: KIZ 035741, KIZ 035742, and KIZ 035776, three adult males, and one adult female (KIZ 035740) collected by S.B. Hou and P.F. Wei on 19 June 2019 from same locality as holotype; three adult males (KIZ 028321, KIZ 028323, and KIZ 028324) and three adult females (KIZ 028318, KIZ 028325, and KIZ 028326) collected by K. Wang and J.L. Ren on 6 July 2016 from Gongnong Village, Pantiange Town, Weixi County, Yunnan Province, China; one adult male (KIZ 044335) collected by K. Wang from Shigu Township, Lijiang City; single adult male (CIB II0447) from Weixi, Yunnan (collector and collecting information unknown; CIB: Chengdu Institute of Biology). 
DiagnosisDiagnosis: Hebius weixiensis sp. nov. can be distinguished from its recognized congeners by a combination of the following characters: (1) nasal divided, each half in contact with each other; (2) loreal pentagonal, entering orbit or not; (3) supralabials eight; (4) preocular one or two; (5) postoculars three; (6) infralabials eight to ten; (7) dorsal scales 19-19-17 rows; (8) dorsal scale reduction from 19 to 17 rows at position of 96th to 101st ventrals; (9) ventrals 171–182; (10) subcaudals 74–88, paired; (11) anal divided; (12) no dorsal stripes or some dorsal stripes on posterior body; (13) no ventrolateral stripe; and (14) ventral body pale yellow (Hou et al. 2021). 
EtymologyThe specific name “weixiensis” is derived from the type locality of the new species in Weixi County, Yunnan Province, China. 
  • Hou, S. B., Yuan, Z. Y., Wei, P. F., Zhao, G. G., Liu, G. H., Wu, Y. H., ... & Che, J. 2021. Molecular phylogeny and morphological comparisons of the genus Hebius Thompson, 1913 (Reptilia: Squamata: Colubridae) uncover a new taxon from Yunnan Province, China, and support revalidation of Hebius septemlineatus (Schmidt, 1925). Zoological Research, 42(5): 620-625 - 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
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