后棱蛇属<em>Opisthotropis</em>（蛇亚目：游蛇科：水游蛇亚科）一新种

Jin-Long Ren; Kai Wang; Ke Jiang; Peng Guo; Jia-Tang Li

doi:10.24272/j.issn.2095-8137.2017.068

后棱蛇属Opisthotropis（蛇亚目：游蛇科：水游蛇亚科）一新种

doi: 10.24272/j.issn.2095-8137.2017.068

任金龙^1,2,3,
王剀⁴,
蒋珂^1,2,
郭鹏⁵,
李家堂^1,2*,

1 中国科学院成都生物研究所山地生态恢复与生物资源利用重点实验室暨生态恢复与生物多样性保育四川省重点实验室, 四川成都 610041, 中国;
2 中国科学院东南亚生物多样性研究中心, 内比都耶津 05282, 缅甸;
3 中国科学院大学, 北京 100049, 中国;
4 俄克拉荷马大学萨姆诺贝尔自然历史博物馆, 俄克拉荷马州诺曼 73019, 美国;
5 宜宾学院生命科学与食品工程学院, 四川宜宾 644000, 中国

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通讯作者:
Jia-Tang Li, lijt@cib.ac.cn

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- 收稿日期: 2017-08-30
- 修回日期: 2017-09-08
- 刊出日期: 2017-09-18

A new species of the Southeast Asian genus Opisthotropis (Serpentes: Colubridae: Natricinae) from western Hunan, China

Jin-Long Ren^1,2,3,
Kai Wang⁴,
Ke Jiang^1,2,
Peng Guo⁵,
Jia-Tang Li^{1,2*
,}

1 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 610041, China;
2 Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin Nay Pyi Taw 05282, Myanmar;
3 University of Chinese Academy of Sciences, Beijing 100049, China;
4 Sam Noble Oklahoma Museum of Natural History & Department of Biology, University of Oklahoma, Norman Oklahoma 73019, USA;
5 College of Life Sciences and Food Engineering, Yibin University, Yibin Sichuan 644007, China

Funds: This study was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (XDPB0202); National Natural Science Foundation of China (31722049, 31772434, 31372173); Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (Y4ZK111B01); National Key Research and Development Program of China (2017YFC0505202); Frontier Science Key Research Programs of CAS (QYZDB-SSW-SMC058) and Youth Innovation Promotion Association of CAS

More Information

Corresponding author: Jia-Tang Li, lijt@cib.ac.cn

摘要

摘要: 后棱蛇属Opisthotropis Günther，1872物种分布于中国南部和东南亚的广泛区域。基于线粒体DNA与形态学证据，描述了后棱蛇属Opisthotropis一新种赵氏后棱蛇Opisthotropis zhaoermii sp.nov. ，该物种目前仅知于模式产地湖南古丈县。该新种在遗传与形态上与莽山后棱蛇O.cheni Zhao，1999和山溪后棱蛇O. latouchii（Boulenger，1899）最为接近，但遗传距离与本属其他物种差异较大（5.1%-16.7%），并可根据以下形态学特征与本属其他物种进行区分：（1）体型较大（体全长514-586 mm）而粗壮；（2）通身背鳞17行，前部起弱棱而后增强；（3）腹鳞147-152枚，尾下鳞54-62枚；（4）无眶前鳞，颊鳞延长而入眶；（5）上唇鳞8-9，第五枚与第六枚入眶；（6）前颞鳞短，长宽比1.74-2.04；（7）上颌齿等大，28-30枚；（8）头背有边缘赭色的不规则黄色线纹；（9）身体有黑黄相间的纵纹，体前部的部分纵纹合并成数个浅色斑块或条纹；（10）腹部浅黄色，外侧有不对称点斑。此外，本研究更新了后棱蛇属所有物种的检索表，对该类群的生态学研究提出了建议。
- 分布 /
- 分类 /
- 后棱蛇属Opisthotropis /
- 生活史 /
- 水游蛇亚科 /
- 赵氏后棱蛇Opisthotropis zhaoermii sp.nov.
Abstract: A new species of natricine snake of the Southeast Asian genus Opisthotropis Gü nther, 1872 is described from western Hunan Province of China based on both mitochondrial DNA and morphological data. The new species is morphologically most similar and genetically most closely related to O. cheni Zhao, 1999 and O. latouchii (Boulenger, 1899), but possesses considerable genetic divergence (p-distance 5.1%-16.7%) and can be differentiated from all other congeners by a combination of the following morphological characters: (1) body size large (total length 514-586 mm) and strongly built; (2) dorsal scale rows 17 throughout, feebly keeled anteriorly and moderately keeled posteriorly; (3) ventral scales 147-152, subcaudal scales 54-62; (4) preocular absent, loreal elongated and touching orbit; (5) supralabials 8-9, fifth and sixth entering obit; (6) anterior temporals short, length 1.74-2.04 times longer than width; (7) maxillary teeth subequal, 28-30; (8) dorsal surface of head with distinct irregular yellow stripes and markings edged with ochre; (9) body with clear black and yellow longitudinal streaks, partly fused to several lighter patches or thicker stripes anteriorly; and (10) venter pale yellow, with asymmetric blackish speckles along outer margin. We present an updated diagnostic key to all members of the genus Opisthotropis, and recommendations on the ecological study for the group are provided.
- Distribution /
- Natricinae /
- Natural history /
- Taxonomy /
- Opisthotropis /
- Opisthotropis zhaoermii sp. nov.

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参考文献(43)

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后棱蛇属Opisthotropis（蛇亚目：游蛇科：水游蛇亚科）一新种

doi: 10.24272/j.issn.2095-8137.2017.068

通讯作者:
Jia-Tang Li, lijt@cib.ac.cn

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A new species of the Southeast Asian genus Opisthotropis (Serpentes: Colubridae: Natricinae) from western Hunan, China

Corresponding author: Jia-Tang Li, lijt@cib.ac.cn

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后棱蛇属Opisthotropis（蛇亚目：游蛇科：水游蛇亚科）一新种

doi: 10.24272/j.issn.2095-8137.2017.068

通讯作者: Jia-Tang Li, lijt@cib.ac.cn

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A new species of the Southeast Asian genus Opisthotropis (Serpentes: Colubridae: Natricinae) from western Hunan, China

Corresponding author: Jia-Tang Li, lijt@cib.ac.cn

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通讯作者:
Jia-Tang Li, lijt@cib.ac.cn