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蒋万胜, 赵亚鹏, 杜丽娜, 王茉. 2021: 中国云南李仙江上游鲤形目条鳅科鱼类一新种记述——川河云南鳅. 动物学研究, 42(2): 241-245. DOI: 10.24272/j.issn.2095-8137.2020.287
引用本文: 蒋万胜, 赵亚鹏, 杜丽娜, 王茉. 2021: 中国云南李仙江上游鲤形目条鳅科鱼类一新种记述——川河云南鳅. 动物学研究, 42(2): 241-245. DOI: 10.24272/j.issn.2095-8137.2020.287
Wan-Sheng Jiang, Ya-Peng Zhao, Li-Na Du, Mo Wang. 2021: Yunnanilus chuanheensis, a new loach species (Cypriniformes: Nemacheilidae) from the upper Lixianjiang River in Yunnan, China. Zoological Research, 42(2): 241-245. DOI: 10.24272/j.issn.2095-8137.2020.287
Citation: Wan-Sheng Jiang, Ya-Peng Zhao, Li-Na Du, Mo Wang. 2021: Yunnanilus chuanheensis, a new loach species (Cypriniformes: Nemacheilidae) from the upper Lixianjiang River in Yunnan, China. Zoological Research, 42(2): 241-245. DOI: 10.24272/j.issn.2095-8137.2020.287

中国云南李仙江上游鲤形目条鳅科鱼类一新种记述——川河云南鳅

Yunnanilus chuanheensis, a new loach species (Cypriniformes: Nemacheilidae) from the upper Lixianjiang River in Yunnan, China

  • 摘要: 在中国云南省南涧县红河水系一级支流李仙江上游川河,采集到鲤形目条鳅科云南鳅族鱼类一新种,命名为川河云南鳅(Yunnanilus chuanheensis sp. nov. )。该新种因体具侧线、头部具侧线管孔而归属于传统上认为的侧纹云南鳅组。其可以通过以下特征区别于侧纹云南鳅组的所有其他物种:唇部无乳突、前后鼻孔分开、全身被鳞、眼径小于眼间距、第一鳃弓外鳃耙缺失、具10–11内鳃耙、眼径大于头长的18%、侧线延伸不及背鳍插入点垂直下方。据我们所知,该物种是红河水系目前记录和描述的第一个云南鳅属物种。

     

    Abstract: A new loach species (Cypriniformes: Nemacheilidae: Yunnanilini), Yunnanilus chuanheensis sp. nov. , was caught from Chuanhe in the upper reaches of the Lixianjiang River, a tributary of the Red River in Nanjian County, Yunnan Province, China. This species is a member of the traditional Y. pleurotaenia species group based on the presence of a lateral line and cephalic lateral-line canals. It can be distinguished from other species in the Y. pleurotaenia species group by the following characters: lips without papillae, anterior and posterior nostrils separated, whole body scaled, eye diameter smaller than interorbital width, outer gill raker absent on first gill arch, eye diameter greater than 18% of head length, 10–11 inner gill rakers on first gill arch, and lateral line not extending to vertical through dorsal fin insertion. To the best of our knowledge, this is the first Yunnanilus species recorded from the Red River drainage.

     

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