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Chinese Ratsnake or Indo-Chinese Rat Snake (Ptyas korros) is a species of snake found in Southeast Asia.


Snout obtuse, projecting; eye very large. Rostral visible from above; internasals shorter than the praefrontals; frontal as long as its distance from the tip of the snout or a little longer, as long as the parietals; two or three loreals; a large praeocular, sometimes touching the frontal; a small subocular below; two postoculars; temporals 2 + 2; eight upper labials, fourth and fifth entering the eye; five lower labials in contact with the anterior chin-shields; latter shorter than the posterior. Scales smooth or feebly keeled on the posterior part of the body, in 15 rows; ventrals 160-177; anal divided; sub-caudals 122-145. Brown or olive above; the scales on the posterior part of the body and on the tail often yellow and edged with black. Lower surface yellow. Young specimens with transverse series of round whitish spots or with narrow yellow transverse bars. Length of head and body 1080 mm; tail 700 mm.[1]


Myanmar; Cambodia, China (Chekiang, Jiangxi, Fujian, Guangdong, Hainan, Guangxi, Hunan, Yunnan, Hong Kong);India (Assam; Arunachal Pradesh (Namdapha - Changlang district, Chessa, Chimpu, Itanagar - Papum Pare district), Bangladesh;Indonesia (Sumatra, Borneo, Java, Bali);Laos, Taiwan, Thailand, Vietnam, West Malaysia, Singapore Island


  1. Rooij, Nelly de. 1915. The reptiles of the Indo-Australian archipelago. Volume 2. Leiden.


  • Ahsan, M. Farid and Shayla Parvin 2001 The first record of Ptyas korros (Colubridae) from Bangladesh. Asiatic Herpetological Research. 9: 23-24
  • Lazell,J.D. 1998 Morphology and the status of the snake genus "Ptyas". Herpetological Review 29 (3): 134
  • Schlegel, H. 1837 Essai sur la physionomie des serpens. Partie Généralxxviii +251 S. + Partie Descriptiv606 S. + xvi. La Haye (J. Kips, J. HZ. et W. P. van Stockum)

External linksEdit

id:Ular jali ja:ヒメナンダ th:งูสิง vi:Rắn ráo zh:灰鼠蛇

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