Scalation and colouration comparisons between Achalinus sheni sp. nov. and A. yunkaiensis A A. sheni sp. nov. (ANU20230014, adult male), A1–A4 photos by Yu-Hao Xu B A. sheni sp. nov. (CIB 119043, juvenile male), B1–B2 photos by Ke-Ji Guo and B3–B4 photos by Sheng-Chao Shi C A. yunkaiensis (SYS r001443, adult male): C1–C4 photos by Shuo Qi. Line illustration (A5, B5 and C5) by Jie-Fang Chen.

 
 
  Part of: Ma S, Xu Y-H, Qi S, Wang Y-Y, Tang S-S, Huang S, Jiang J-P (2023) Discovery of a new cryptic Achalinus Peters, 1869 (Serpentes, Xenodermidae) species from Hunan Province, China. ZooKeys 1181: 9-27. https://doi.org/10.3897/zookeys.1181.109462