Zhang Chu-Yi, Luo Pan, Huang Feng, Zhang E
Institute of Hydrobiology; Chinese Academy of Sciences; Wuhan 430072; Hubei Province; P.R. China; Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution; Shanghai Ocean University; Shanghai 201306; P.R. China.
Hubei Provincial Academy of Eco-environmental Sciences; Wuhan 430072; Hubei Province; P. R. China.
Zootaxa. 2024 Dec 4;5543(3):404-422. doi: 10.11646/zootaxa.5543.3.6.
A taxonomic revision of the nemacheilid genus Claea from China is provided based on molecular and morphological data. Three species are identified in this genus: C. dabryi (type species), C. wulongensis (a species originally recognized in Triplophysa), and C. minibarba sp. nov., here described from the mid-upper Chang-Jiang basin in northwestern Hubei Province, South China. This new species differs from the two congeneric species in having a deeper body, further from C. dabryi in having shorter outer rostral and maxillary barbels, and further from C. wulongensis in possessing a higher count of vertebrae, a deeper caudal-peduncle, and a narrower interorbital space. Its validity is corroborated by its monophyly recovered in a mitochondrial cytochrome b gene-based phylogenetic analysis and its significant genetic divergence of this gene with the two congeneric species.
基于分子和形态学数据，对中国的条鳅科Claea属进行了分类修订。该属鉴定出三个物种：长吻条鳅（模式种）、乌龙条鳅（原在高原鳅属中被认可的一个物种）和小须条鳅新种，本文对其进行了描述，该新种采自中国南方湖北省西北部长江中上游流域。这个新物种与同属的两个物种不同之处在于其身体更深，与长吻条鳅不同之处在于其外侧吻须和上颌须较短，与乌龙条鳅不同之处在于其椎骨数量更多、尾柄更深且眶间隔更窄。基于线粒体细胞色素b基因的系统发育分析显示其单系性，以及该基因与同属的两个物种之间存在显著的遗传差异，从而证实了其有效性。
