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孙智闲, 李雪健, 唐文乔, 赵亚辉. 2022: 中国长江胡鮈属一新种(鲤形目:鲤科). 动物学研究, 43(1): 33-39. DOI: 10.24272/j.issn.2095-8137.2021.168
引用本文: 孙智闲, 李雪健, 唐文乔, 赵亚辉. 2022: 中国长江胡鮈属一新种(鲤形目:鲤科). 动物学研究, 43(1): 33-39. DOI: 10.24272/j.issn.2095-8137.2021.168
Zhi-Xian Sun, Xue-Jian Li, Wen-Qiao Tang, Ya-Hui Zhao. 2022: A new species of the gudgeon genus Huigobio Fang, 1938 (Cypriniformes: Cyprinidae) from the Yangtze River Basin, southern China. Zoological Research, 43(1): 33-39. DOI: 10.24272/j.issn.2095-8137.2021.168
Citation: Zhi-Xian Sun, Xue-Jian Li, Wen-Qiao Tang, Ya-Hui Zhao. 2022: A new species of the gudgeon genus Huigobio Fang, 1938 (Cypriniformes: Cyprinidae) from the Yangtze River Basin, southern China. Zoological Research, 43(1): 33-39. DOI: 10.24272/j.issn.2095-8137.2021.168

中国长江胡鮈属一新种(鲤形目:鲤科)

A new species of the gudgeon genus Huigobio Fang, 1938 (Cypriniformes: Cyprinidae) from the Yangtze River Basin, southern China

  • 摘要: 该文 描述了一种来自中国南方长江流域的鮈亚科新种,异唇胡鮈(Huigobio heterocheilus)。该新种可与属内的其它物种可以通过以下形态特征区分:下唇中叶不可见;腹鳍基前的腹部中央裸露无鳞;侧线鳞39–40;尾柄高占尾柄长的49.2%–59.1%;须长占头长的6.6%–10.7%;眼前缘至吻端上唇之间具有黑斑。基于线粒体细胞色素b(cyt b)基因序列使用Kimura-2参数(K2P)模型计算新种与细尾胡鮈(Huigobio exilicauda Jiang & Zhang, 2013)和嵊县胡鮈(Huigobio chenhsienensis Fang, 1938)的种间遗传距离,分别为13.2%和15.1%。目前可知新种分布在长江中游湘江的上游支流中。另外,该文给出了胡鮈属(Huigobio Fang, 1938)的物种检索表。

     

    Abstract: During revision of the genus Microphysogobio Mori, 1934, we discovered a new species of Huigobio from the Yangtze River Basin in China. The new species, named Huigobio heterocheilus sp. nov. , can be distinguished from its congeners by a combination of the following characters: medial pad on lower lip not visible; ventral region scaleless before pelvic-fin insertion; lateral-line scales 39–40; caudal peduncle depth 49.2%–59.1% of length; barbel length 6.6%–10.7% of head length; black blotch between anterior margin of eye and upper lip. Using the K2P model and cytochrome b (cyt b) sequences, interspecific genetic distances between the new species and Huigobio exilicauda Jiang & Zhang, 2013 and Huigobio chenhsienensis Fang, 1938 were 13.2% and 15.1%, respectively. The new species is known from the upper reaches of the Xiangjiang River in the middle Yangtze River Basin. A diagnostic key for species of Huigobio Fang, 1938 is provided.

     

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