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

作　　者：Zhi-Xian Sun Xue-Jian Li Wen-Qiao Tang Ya-Hui Zhao 

机构地区：[1]Key Laboratory of Zoological Systematics and Evolution,Institute of Zoology,Chinese Academy of Sciences,Beijing,100101,China [2]Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution,Shanghai Ocean University,Shanghai,201306,China

出　　处：《Zoological Research》2022年第1期33-39,共7页动物学研究（英文）

基　　金：supported by the National Natural Science Foundation of China(31972868);National Science&Technology Fundamental Resources Investigation Program of China(2019FY101800);Sino BON-Inland Water Fish Diversity Observation Network。

摘　　要：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.

关 键 词：CYPRINIDAE YANGTZE insertion 

分 类 号：Q959.4[生物学—动物学]