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Achalinus ningshanensis YANG, HUANG, JIANG, BURBRINK, GONG, YU, ZHANG, HUANG & HUANG, 2022

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Higher TaxaXenodermidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
 
Common NamesE: Ningshan Odd-scaled Snake
Chinese: 宁陕脊蛇 (Níng Shǎn Jǐ Shé) 
SynonymAchalinus ningshanensis YANG, HUANG, JIANG, BURBRINK, GONG, YU, ZHANG, HUANG & HUANG 2022 
DistributionChina (Shaanxi)

Type locality: Xunyangba Town (33.5434 N, 108.5439 E, 1372 m a. s. l.), Ningshan County, Shaanxi Province, China  
Reproduction 
TypesHolotype. ANU20220001 (field number JK0917, Fig. 3), an adult female, collected in summer of 2008 by the team of Ke Jiang.
Paratypes. Six females, JK0918, JK0889, JK0890, JK0891, HSR19131, and HSR19132 (Voucher number: ANU20220002–7), all with the same collecting information as the holotype. 
DiagnosisDiagnosis: “Achalinus ningshanensis sp. nov. can be differentiated from all other members of the genus Achalinus by the following combination of morphological characters: (1) dorsum iridescent and uniformly dark brown in preservative, longitudinal vertebral line absent; (2) brown beneath; (3) dotted black streak in the middle of the subcaudals absent; (4) tail length relatively short, TaL/ToL 12–16% in females; (5) fewer subcaudals, 41–46, in females; (6) dorsal scales 23 rows throughout, strongly keeled, and the outer-most rows on both sides of the body also keeled and slightly enlarged; (7) one loreal; (8) internasal not fused to prefrontal; (9) suture between internasals is similar size when compared to the suture between prefrontals; (10) preocular and postocular absent; (11) 6 supralabials; (12) 5 infralabials, the first 3 (rarely 2) touching the first pair of chin shields; (13) 3 pairs of chin shields.” (Yang et al. 2022)


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Comment 
EtymologyThe specific epithet refers to the location of type specimens, Ningshan County, Shaanxi Province, China. 
References
  • Ma S, Shi S-C, Xiang S-J, Shu F, Jiang J-P 2023. A new species of Achalinus Peters, 1869 (Squamata, Xenodermidae) from Hunan Province, China. ZooKeys 1166: 315-331 - get paper here
  • YANG, D. C., HUANG, R. Y., JIANG, K., BURBRINK, F. T., GONG, Y. A., YU, J., ... & HUANG, S. 2022. A new species of the genus Achalinus (Squamata: Xenodermidae) from Ningshan County, Shaanxi Province, China. Zootaxa 5190 (1): 127-140 - get paper here
 
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