文章标题广西网鱼属一新种（网鱼目：鲤形目：网鱼科）。

IF 1 4区生物学 Q3 ZOOLOGY

Zoological Science Pub Date : 2025-10-01 DOI:10.2108/zs240109

Zhuo-Ni Chen, Shi-Xiong Leng, Chun-Sheng Yang, Xian-Wu Tang, Bin Qiu, Tong-Xiang Zou

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引用次数: 0

摘要

报道了广西贺州市大桂山鳄蜥国家级保护区内泥鳅一新种Oreonectes daguishanensis sp. nov.。在形态学上，新种可通过以下特征组合与同属种区分：背鳍起源在骨盆鳍起源后；胸鳍短，不达到骨盆鳍基部；骨盆鳍尖端不超过肛门；体宽为标准长度的10.2%-13.6%；眼直径占头长15.5% ~ 19.3%；鱼鳔后腔退变。线粒体细胞色素c氧化酶亚基I和细胞色素b基因标记的系统发育分析支持其物种水平的独特性，与近亲的未校正p距离为7.4%至9.7%。

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A New Freshwater Fish Species of the Genus Oreonectes (Teleostei: Cypriniformes: Nemacheilidae) From Guangxi, China.

We describe a new species of loach, Oreonectes daguishanensis sp. nov. from Guangxi Daguishan Crocodile Lizard National Reserve in Hezhou City, Guangxi Zhuang Autonomous Region, China. Morphologically, the new species can be distinguished from congeneric species by the following combination of characters: dorsal-fin origin posterior to pelvic-fin origin; pectoral fins short, not reaching pelvic-fin base; pelvic-fin tip does not exceed anus; body width 10.2%-13.6% of standard length; eye diameter 15.5%-19.3% of head length; posterior chamber of swim bladder degenerated. Phylogenetic analysis of the mitochondrial cytochrome c oxidase subunit I and cytochrome b gene markers supports its species-level distinctiveness, with uncorrected p-distances ranging from 7.4% to 9.7% from closest relatives.

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来源期刊

Zoological Science 生物-动物学

CiteScore

1.70

自引率

11.10%

发文量

审稿时长

1 months

期刊介绍： Zoological Science is published by the Zoological Society of Japan and devoted to publication of original articles, reviews and editorials that cover the broad field of zoology. The journal was founded in 1984 as a result of the consolidation of Zoological Magazine (1888–1983) and Annotationes Zoologicae Japonenses (1897–1983), the former official journals of the Zoological Society of Japan. Each annual volume consists of six regular issues, one every two months.