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熊建利, 罗玮, 曾晓茂. 2020: 中国西南部山溪鲵属(有尾目:小鲵科)一新种. 动物学研究, 41(5): 589-594. DOI: 10.24272/j.issn.2095-8137.2020.129
引用本文: 熊建利, 罗玮, 曾晓茂. 2020: 中国西南部山溪鲵属(有尾目:小鲵科)一新种. 动物学研究, 41(5): 589-594. DOI: 10.24272/j.issn.2095-8137.2020.129
Jian-Li Xiong, Wei Luo, Xiao-Mao Zeng. 2020: A new species of the genus Batrachuperus (Urodela: Hynobiidae) from Southwestern China. Zoological Research, 41(5): 589-594. DOI: 10.24272/j.issn.2095-8137.2020.129
Citation: Jian-Li Xiong, Wei Luo, Xiao-Mao Zeng. 2020: A new species of the genus Batrachuperus (Urodela: Hynobiidae) from Southwestern China. Zoological Research, 41(5): 589-594. DOI: 10.24272/j.issn.2095-8137.2020.129

中国西南部山溪鲵属(有尾目:小鲵科)一新种

A new species of the genus Batrachuperus (Urodela: Hynobiidae) from Southwestern China

  • 摘要: 该文基于形态和分子证据描述了分布于中国西南部的山溪鲵属(Batrachuperus Bouglenger, 1878)一新种Batrachuperus daochengensis sp. nov (稻城山溪鲵)。基于线粒体基因和已有的核基因数据构建的分子系统发育关系显示稻城山溪鲵和盐源山溪鲵(B. yenyuanensis)为姊妹种。稻城山溪鲵与其他同属物种区别于以下特征:指、趾末端无棕色角质鞘;掌、蹠突无;肋沟12条;生活时背面棕色,杂以黑色斑点;指长顺序为2、3、4、1;前后肢贴体相对时指、趾端相距1~2肋沟。目前,稻城山溪鲵已知分布区为中国西南部的沙鲁里山脉的中部和南部。

     

    Abstract: A new stream salamander species, Batrachuperus daochengensis sp. nov. , from southwestern China, is described herein based on morphological and molecular evidence. Molecular phylogeny derived from the mitochondrial gene together with previous nuclear data revealed that B. daochengensis sp. nov. is sister to B. yenyuanensis. The new species differs from all other species of the genus by the following combination of characters: brown horny epidermis on tips of fingers and toes absent; tubercles on palms and soles absent; costal grooves 12; dorsal brown, mottled with blackish spots; fingers 2-3-4-1 in order of decreasing length; tips of longest digits of fore- and hindlimbs largely separated by one to two costal spaces when adpressed towards each other along sides of body. The new species is currently known in the central and southern Shaluli Mountains in southwestern China.

     

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