Lyu Zhi-Tong, Chen Yang, Yang Jian-Huan, Zeng Zhao-Chi, Wang Jian, Zhao Jian, Wan Han, Pang Hong, Wang Ying-Yong
State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, Guangdong Province, PR China School of Ecology, Sun Yat-sen University, Guangzhou 510006, Guangdong Province, PR China.
Zootaxa. 2020 Oct 15;4861(1):zootaxa.4861.1.3. doi: 10.11646/zootaxa.4861.1.3.
The Music Frog genus Nidirana was recently resurrected as a distinct genus and contains 14 species distributed in subtropical eastern and southeastern Asia. The species diversity of Nidirana is dramatically underestimated, and half of its species was described in the last five years. In this study, Nidirana occidentalis sp. nov., a new species of Music Frog from western Yunnan, China, is proposed based on morphological and molecular evidences. The new species was previously misidentified as N. pleuraden, but can be distinguished from the true N. pleuraden from eastern Yunnan, and all other congeners, by a combination of morphological characteristics, and significant divergence in the mitochondrial genes (≥ 5.1% in 16S and ≥ 8.9% in CO1). Nidirana occidentalis sp. nov. is assigned to the N. pleuraden group on the basis of morphological characters, but its phylogenetic placement remains unresolved due to weak branch support. Geographically, these two species are isolated by the Red River in Yunnan, supporting the hypothesis that the Red River is an important geographical barrier that drives speciation in flora and fauna. Nidirana occidentalis sp. nov. represents the second species of N. pleuraden group and the 15th species of the genus.
琴蛙属（Nidirana）最近被重新确立为一个独立的属，包含14个物种，分布于亚洲东部和东南部的亚热带地区。琴蛙属的物种多样性被严重低估，近五年内描述了其半数物种。在本研究中，基于形态学和分子证据，提出了一种来自中国云南西部的琴蛙新物种——滇西琴蛙（Nidirana occidentalis sp. nov.）。该新物种之前被误鉴定为滇侧褶蛙（N. pleuraden），但通过形态特征组合以及线粒体基因的显著差异（16S基因差异≥5.1%，CO1基因差异≥8.9%），可将其与来自云南东部的真正滇侧褶蛙以及所有其他同属物种区分开来。基于形态特征，滇西琴蛙被归入滇侧褶蛙组，但由于分支支持较弱，其系统发育位置仍未确定。在地理上，这两个物种被云南的红河隔开，支持了红河是驱动动植物物种形成的重要地理屏障这一假说。滇西琴蛙是滇侧褶蛙组的第二个物种，也是琴蛙属的第15个物种。
