Min Rui, Zhao Yahui, Shi Jingsong, Yang Junxing
Kunming Natural History Museum of Zoology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.
Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
Zookeys. 2022 Mar 17;1089:109-124. doi: 10.3897/zookeys.1089.77203. eCollection 2022.
Based on morphological and molecular analysis of species distributed in the Nanpanjiang River in Yunnan, China, we described a new species, It differs from its congeners by a combination of the following characters: naked and robust body with well-developed crests (caudal peduncle depth as a percentage of its length: 70.5-78.5%); lateral line complete; median notch on lower jaw; median gap on lower lip; three pairs of short barbels, with maxillary barbels extending posteriorly to anterior edge of eyes; branched dorsal-fin rays 8½; and vertebrae 37-39. It can further be distinguished from by several differences of the caudal skeleton such as the number of hypural elements, the presence of epurale and the shape of neural and haemal spines. Phylogenetic analysis of the mitochondrial cytochrome c oxidase subunit I (COI) gene indicated that the new species represents an independent lineage. It is separated from other species by a minimum of 5.3% Kimura-2-parameter distance in the COI gene. Furthermore, we confirmed that should be a member of based on both skeleton and molecular evidence.
基于对分布于中国云南南盘江的物种进行的形态学和分子分析，我们描述了一个新物种。它与同属其他物种的区别在于以下特征组合：身体裸露且粗壮，具发达的嵴（尾柄深度占其长度的百分比为70.5 - 78.5%）；侧线完整；下颌有中央缺刻；下唇有中央间隙；三对短触须，上颌触须向后延伸至眼前缘；背鳍分枝鳍条8½；椎骨37 - 39枚。它还可通过尾骨骼的一些差异，如尾下骨元件数量、尾上骨的存在以及神经棘和脉棘的形状，与其他物种进一步区分。线粒体细胞色素c氧化酶亚基I（COI）基因的系统发育分析表明，该新物种代表一个独立的谱系。在COI基因中，它与其他物种的最小Kimura-2-参数距离为5.3%。此外，基于骨骼和分子证据，我们确认该物种应为某一属的成员。
