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A new species of the gudgeon genus Microphysogobio Mori, 1934 (Cypriniformes: Cyprinidae) from Zhejiang Province, China

Zhi-Xian Sun Bin-Qing Zhu Jun Wu Ya-Hui Zhao

Zhi-Xian Sun, Bin-Qing Zhu, Jun Wu, Ya-Hui Zhao. A new species of the gudgeon genus Microphysogobio Mori, 1934 (Cypriniformes: Cyprinidae) from Zhejiang Province, China. Zoological Research, 2022, 43(3): 356-361. doi: 10.24272/j.issn.2095-8137.2021.398
Citation: Zhi-Xian Sun, Bin-Qing Zhu, Jun Wu, Ya-Hui Zhao. A new species of the gudgeon genus Microphysogobio Mori, 1934 (Cypriniformes: Cyprinidae) from Zhejiang Province, China. Zoological Research, 2022, 43(3): 356-361. doi: 10.24272/j.issn.2095-8137.2021.398

中国浙江省小鳔鮈属一新种(鲤形目:鲤科)

doi: 10.24272/j.issn.2095-8137.2021.398

A new species of the gudgeon genus Microphysogobio Mori, 1934 (Cypriniformes: Cyprinidae) from Zhejiang Province, China

Funds: This work was supported by the National Science & Technology Fundamental Resources Investigation Program of China (2019FY101800), Project of Biodiversity Survey and Conservation in Lishui, Zhejiang Province, and Sino BON-Inland Water Fish Diversity Observation Network
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  • 摘要: 该文 描述了中国浙江省瓯江流域鮈亚科鱼类一新种,瓯江小鳔鮈(Microphysogobio oujiangensis sp. nov. )。该新种可与属内的其它物种通过以下形态特征区分:口裂浅弧形,上颌角质边缘宽度为口宽的一半,上唇中央具有基本等大的6–10个单列排布的发达乳突,下唇中叶分裂为两个边缘圆弧状的方形凸起,其上具有沟痕;胸腹裸露区覆盖鳞片,仅胸鳍基前的胸部裸露无鳞,侧线鳞36–38,背鳍前鳞8–10;须长占头长的26.7%–31.4%;眼径占头长的30.9%–36.9%;眼间距占头长的21.3%–27.6%;鳔后室细小,长度小于眼径的一半。基于线粒体细胞色素b(cyt b)基因,通过使用贝叶斯法(BI)与最大似然法(ML)构建系统发育树,并结合物种划分方法,同样支持该种为新的分类单元,与短吻小鳔鮈(M. brevirostris)构成姊妹关系。
  • Figure  1.  Type photos, live photos, morphological comparisons, distribution, habitat, and phylogenetic position of Microphysogobio oujiangensis sp. nov.

    A–C: Picture shows lateral view (A), ventral view (B), and dorsal view (C) of holotype (ASIZB 220814). D: Live individual, collected from same locality as type specimens. E–J: Original drawing of lip papillae system of Microphysogobio species: Microphysogobio oujiangensis sp. nov. (E), M. brevirostris (F), M. xianyouensis (G), M. fukiensis (H), M. zhangi (I), and M. alticorpus (J). K: Distribution of Microphysogobio oujiangensis sp. nov. and congeners. L: Habitat in type locality. M: Molecular phylogenetic tree of Microphysogobio oujiangensis sp. nov. and congeners based on cyt b sequence reconstructed by Bayesian inference; Bayesian posterior probabilities are shown on nodes and species delimitation results are shown on right. Photos by Zhi-Xian Sun.

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  • ZR-2021-398 Supplementary Materials.pdf
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出版历程
  • 收稿日期:  2022-02-02
  • 录用日期:  2022-03-29
  • 网络出版日期:  2022-03-31
  • 刊出日期:  2022-05-18

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