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Hebius yanbianensis LIU, ZHONG, WANG, LIU & GUO, 2018

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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common NamesChinese: Yanbian Fulianshe
E: Yanbian keelback snake 
SynonymHebius yanbianensis LIU, ZHONG, WANG, LIU & GUO 2018 
DistributionChina (Sichuan)

Type locality: Zemulong Town, Yanbian County (N 101°35′04.43′′, E 27°13′52.00′′), South Sichuan Province, China, at an elevation of 1, 974 m elevation.  
Reproduction 
TypesHolotype: YBU 15018, an adult male, collected by Guanghui Zhong and Ping Wang in March 2015. 
DiagnosisDiagnosis. Hebius yanbianensis sp. nov. can be distinguished from its congeners on the basis of the following combination of characters: 1) TL/SVL ratio 0.35; 2) three postoculars; 3) six temporals in formula 1/(1+1) +1+2; 4) eight supralabials, 4th and 5th in contact with the eye, 6th largest;5) ten infralabials, the first five bordering the anterior chinshields; 6) 172 ventrals (plus one preventral); 7) cloacal plate divided; 8) 90 pairs of subcaudals; 9) dorsal scales in 19-19-17 rows, all weakly keeled except the outer two; 10) reduction of dorsal scale rows from 19 to 17 scale (VS19TO17) at the position above 99th ventral scale; 11) reduction of the dorsal tail scales from 8 to 6 scale rows (SC8TO6) at the ventral position of 18th subcaudal, and from 8 to 6 (SC6TO4) at the position above 37th subcaudal; 12) postorbital bones not touching frontals, the parietal ridge weakly developed; the end of the supratemporal bones extending beyond the braincase; maxillary teeth 23-25, the last two distinctly enlarged without diastema between the last two and the anterior teeth. 
Comment 
EtymologyThe specific name refers to the type locality of this species, Yanbian County, Sichuan. 
References
  • LIU, QIN; GUANG-HUI ZHONG, PING WANG, YANG LIU, PENG GUO 2018. A new species of the genus Hebius (Squamata: Colubridae) from Sichuan, China. Zootaxa 4483 (2): 385–394 - get paper here
 
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