Jiang K E, Ren Jin-Long, Guo Jun-Feng, Wang Zeng, Ding L I, Li Jia-Tang
CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, China Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw, Myanmar.
Zootaxa. 2020 Feb 24;4743(1):zootaxa.4743.1.1. doi: 10.11646/zootaxa.4743.1.1.
A new species of the genus Dendrelaphis is described from Xishuangbanna, southern Yunnan, China, based on molecular and morphological data. The new species can be differentiated from other congeners by the following combination of characters: 1) ground color of body bronze, a black postocular stripe extending onto the neck only; 2) pale and dark ventrolateral stripe absent; 3) relatively indistinct transverse bands on the anterior part of lateral body; 4) loreal single; 5) vertebral scales strongly enlarged; 6) dorsal scale rows 15-15-11, all smooth; 7) ventrals 193-197, subcaudals 130-135, paired; 8) SVL/TOL ratio 0.292-0.301; 9) supralabials 9, 4th through 6th touching the eye; 10) the outermost row of dorsal scales the same color as other dorsal scales; 11) retracted hemipenis extending to the 6-7th subcaudal scales. According to molecular and morphological data, D. ngansonensis likely belongs to the D. cyanochloris complex. We further discussed D. cyanochloris complex from Tibet, Yunnan and Hainan, China. A key to Chinese species of Dendrelaphis is provided.
基于分子和形态学数据，在中国云南南部的西双版纳描述了一种新的锦蛇属物种。该新物种可通过以下特征组合与其他同属物种区分开来：1）身体底色为青铜色，一条黑色的眼后条纹仅延伸至颈部；2）腹侧浅色和深色条纹缺失；3）身体侧面前部的横向条纹相对不明显；4）鼻间鳞单一；5）椎鳞强烈扩大；6）背鳞行数为15 - 15 - 11，均光滑；7）腹鳞193 - 197枚，尾下鳞130 - 135枚，成对；8）体长与全长之比为0.292 - 0.301；9）上唇鳞9枚，第4至6枚触及眼睛；10）最外侧一排背鳞与其他背鳞颜色相同；11）收缩的半阴茎延伸至第6 - 7枚尾下鳞。根据分子和形态学数据，纳氏锦蛇可能属于绿锦蛇复合种。我们进一步讨论了中国西藏、云南和海南的绿锦蛇复合种。提供了中国锦蛇属物种的检索表。
