Achalinus yangdatongi HOU, WANG, GUO, CHEN, YUAN & CHE, 2021

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Higher Taxa	Xenodermidae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Yang’s Odd-scaled Snake Chinese: 杨氏脊蛇 (Pinyin: Yang Shi Ji She)
Synonym	Achalinus yangdatongi HOU, WANG, GUO, CHEN, YUAN & CHE 2021
Distribution	China (Yunnan) Type locality: Xiaoqiaogou (23.361°N, 104.686°E; 1609 m a.s.l.), Xichou County, Wenshan, Yunnan Province, China.
Reproduction
Types	Holotype. KIZ 034327, adult male, collected by Kai Xu on 15 April 2018.
Diagnosis	Diagnosis: Achalinus yangdatongi sp. nov. can be distinguished from recognized species of Achalinus by a combination of the following characters: (1) TaL/ToL 26.2% in the male; (2) suture between internasals distinctly longer than that between prefrontals; (3) internasal present; (4) loreal present; (5) supralabials 6; (6) temporals 2+2+3, anterior two temporals in contact with eye; (7) infralabials 6; (8) first pair of infralabials in contact with each other behind mental; (9) dorsal body scales in 23–23–19 rows; (10) scales behind head irregular in shape, smooth; (11) ventrals 161; (12) subcaudals 82, unpaired; (13) precloacal scale entire; (14) maxillary teeth 19; and (15) body surface black above and beneath, iridescent. Additional details (3338 characters) are available for collaborators and contributors. Please contact us for details.
Comment	Distribution: see Hou et al. 2021: 529 (Fig. 1) for a map.
References	HOU, S. B., WANG, K., GUO, P., CHEN, J. M., YUAN, Z. Y., & CHE, J. 2021. Two new species and a new country record of the genus Achalinus (Reptilia: Squamata: Xenodermidae) from China. Zootaxa 4950 (3): 528-546 - get paper here Huang, J., Huang, T., Li, H., Liu, S., Zhang, Z., Zhang, Y., & Wu, T. 2024. A New Species of Genus Achalinus from Hunan Province, China (Squamata: Xenodermatidae). Russian Journal of Herpetology, 31(6), 317-325 - get paper here LI, K., WU, Y. Y., XU, R. Y., ZHU, F., REN, J. L., GUO, P., & DONG, B. J. 2021. A new species of the Achalinus rufescens complex (Xenodermidae: Achalinus) from Fujian Province, China. Zootaxa 5026 (2): 239-254 - 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 Xu, R., Li, K., Zhang, H., He, H., Zhu, F., Wu, Y., & Guo, P. 2023. Expanded Description of Achalinus yangdatongi (Serpentes: Xenodermidae). Current Herpetology, 42(1), 1-8 - get paper here YANG, DIAN-CHENG; YU-HAO XU, JIA-XIANG WU, YAN-AN GONG, RU-YI HUANG, JUN XIANG, ZHENG-LIAN FENG, TIAN-QI HUANG, SONG HUANG 2023. A new species of the genus Achalinus (Squamata: Xenodermidae) from Nanning, Guangxi, China. Zootaxa 5319 (1): 389-402 - get paper here
External links	National Center for Biotechnology Information https://www.facebook.com/groups/stshc/posts/360402249517713 Google images

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