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Trachischium nyalamense GUO, LIU, JIN, SHU, WU & CHE, 2024

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Higher TaxaColubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymTrachischium nyalamense GUO, LIU, JIN, SHU, WU & CHE 2024: 12
Trachischium guentheri — CHE et al. 2020: 744 
DistributionChina (Xizang)

Type locality: Zhangmu Town (85.89° E, 27.97° N), Nyalam County, Xizang, China  
Reproduction 
TypesHolotype: KIZ 012569, adult male; collected on 16 June 2012 by Jiang Ke, Yang Junxiao, and Wang Kai. 
DiagnosisDiagnosis: Trachischium nyalamense sp. nov. can be diagnosed by a combination of the following characters: 1) nasals 1/1; 2) prefrontals 2; 3) supralabials 6/6 (L/R); 4) infralabials 5/5 (L/R); 5) post-oculars 1/1; 6) body scales in 13 rows throughout; 7) ventral scales 150; 8) sub‐ caudal scales 38 pairs; 9) TaL/TL ratio 0.165; and 10) belly milky white. (Guo et al. 2024) 
Comment 
EtymologyNamed after the type locality. 
References
  • Che J, Jiang K, Yan F, Zhang Y. 2020. Amphibians and Reptiles in Tibet––Diversity and Evolution. Science Press, Beijing, China. 803 pp
  • GUO, P., LIU, Q., JIN, J. Q., SHU, F., WU, Y. Y., & CHE, J. 2024. Multilocus Molecular Phylogeny and Morphological Comparisons Provide New Insights into Systematics of the Genus Trachischium Günther, 1858 (Serpentes: Natricidae). Current Herpetology, 43(1): 7-21 - get paper here
 
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