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Yunnanilus chuanheensis, a new loach species (Cypriniformes: Nemacheilidae) from the upper Lixianjiang River in Yunnan, China

Wan-Sheng Jiang Ya-Peng Zhao Li-Na Du Mo Wang

Wan-Sheng Jiang, Ya-Peng Zhao, Li-Na Du, Mo Wang. Yunnanilus chuanheensis, a new loach species (Cypriniformes: Nemacheilidae) from the upper Lixianjiang River in Yunnan, China. Zoological Research, 2021, 42(2): 241-245. doi: 10.24272/j.issn.2095-8137.2020.287
Citation: Wan-Sheng Jiang, Ya-Peng Zhao, Li-Na Du, Mo Wang. Yunnanilus chuanheensis, a new loach species (Cypriniformes: Nemacheilidae) from the upper Lixianjiang River in Yunnan, China. Zoological Research, 2021, 42(2): 241-245. doi: 10.24272/j.issn.2095-8137.2020.287

中国云南李仙江上游鲤形目条鳅科鱼类一新种记述——川河云南鳅

doi: 10.24272/j.issn.2095-8137.2020.287

Yunnanilus chuanheensis, a new loach species (Cypriniformes: Nemacheilidae) from the upper Lixianjiang River in Yunnan, China

Funds: This work was supported by the Talent Project of Hunan Provincial Science and Technology Department (2020RC3057), National Natural Science Foundation of China (32060128), Strategic Priority Research Program of the Chinese Academy of Sciences (XDA24030505), and Guangxi Key Laboratory of Rare and Endangered Animal Ecology, Guangxi Normal University (19A0104)
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  • 摘要: 在中国云南省南涧县红河水系一级支流李仙江上游川河,采集到鲤形目条鳅科云南鳅族鱼类一新种,命名为川河云南鳅(Yunnanilus chuanheensis sp. nov. )。该新种因体具侧线、头部具侧线管孔而归属于传统上认为的侧纹云南鳅组。其可以通过以下特征区别于侧纹云南鳅组的所有其他物种:唇部无乳突、前后鼻孔分开、全身被鳞、眼径小于眼间距、第一鳃弓外鳃耙缺失、具10–11内鳃耙、眼径大于头长的18%、侧线延伸不及背鳍插入点垂直下方。据我们所知,该物种是红河水系目前记录和描述的第一个云南鳅属物种。
    #Authors contributed equally to this work
  • Figure  1.  Type photo, habitat, distribution, and phylogenetic position of Yunnanilus chuanheensis sp. nov.

    Pictures show living (A) and preserved paratype (B, male, KIZ 2016007380); living (C) and lateral, dorsal, ventral, and X-ray views of preserved holotype (D, female, KIZ 2016007379); habitat photo of type locality at time of collection (E); distribution map (F); and phylogenetic position of Yunnanilus chuanheensis sp. nov. based on all known sequences of Yunnanilus from NCBI (G).

    Table  1.   Morphometric and meristic data of Yunnanilus chuanheensis sp. nov. Range, mean, and standard deviation (Mean±SD) include holotype values

    HolotypeRange (n=12)Mean±SD
    Total length (mm)57.844.3–60.353±5.7
    Standard length (mm)46.835.4–49.442.4±5.2
    Percent of standard length
    Body depth18.914.4–2017.9±1.5
    Lateral head length24.622.8–26.324.2±1.2
    Predorsal length55.152.1–59.455±2.1
    Prepelvic length55.653.1–58.655.2±1.5
    Preanal length76.376.2–80.378.1±1.7
    Preanus length74.573.8–7876.2±1.5
    Caudal peduncle length12.411–13.712.2±0.8
    Caudal peduncle depth10.310.1–11.811±0.5
    Head width13.611.8–14.813.1±0.9
    Percent of lateral head length
    Eye diameter20.119.1–28.322.7±2.8
    Interorbital width35.326.7–40.834.8±3.9
    Snout length35.433–41.337.8±2.3
    Head width55.147–60.754.1±4.8
    Head depth60.454.7–70.163.2±4.4
    Percent of caudal peduncle length
    Caudal peduncle depth83.183.1–99.390.6±5.8
    Dorsal-fin raysiii,9iii,8–9
    Pectoral-fin raysi,12i,11–12
    Pelvic-fin raysi,7i,7–8
    Anal-fin raysiii,6iii,5–6
    Caudal-fin branched rays1616
    下载: 导出CSV
  • [1] Chu XL, Chen YR. 1989. The Fishes of Yunnan, China. Part I. Cyprinidae. Beijing: Science Press, 377. (in Chinese)
    [2] Du LN, Lu YF, Chen XY. 2015. Yunnanilus qujinensis, a new species of loach from Yunnan, southwest China (Teleostei: Nemacheilidae). Ichthyological Exploration of Freshwaters, 26(3): 249−254.
    [3] Freyhof J, Serov DV. 2001. Nemacheiline loaches from Central Vietnam with descriptions of a new genus and 14 new species (Cypriniformes: Balitoridae). Ichthyological Exploration of Freshwaters, 12(2): 133−191.
    [4] Froese R, Pauly D. 2019 (2019-12). FishBase. World Wide Web electronic publication. www.fishbase.org.
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    [6] Kottelat M. 2012. Conspectus cobitidum: an inventory of the loaches of the world (Teleostei: Cypriniformes: Cobitoidei). The Raffles Bulletin of Zoology, (Suppl 26): 1−199.
    [7] Kottelat M. 2013. The fishes of the inland waters of southeast Asia: a catalogue and core bibliography of the fishes known to occur in freshwaters, Mangroves and Estuaries. The Raffles Bulletin of Zoology, (Suppl 27): 1−663.
    [8] Kumar S, Stecher G, Li M, Knyaz C, Tamura K. 2018. MEGA X: molecular evolutionary genetics analysis across computing platforms. Molecular Biology and Evolution, 35(6): 1547−1549.
    [9] Prokofiev AM. 2004. A new species of the genus Micronoemacheilus Rendahl, 1944 (Balitoridae: Nemacheilinae) from Hainan (China) with notes on its status. Journal of Ichthyology, 44(3): 191−198.
    [10] Prokofiev AM. 2010. Morphological classification of loaches (Nemacheilinae). Journal of Ichthyology, 50(10): 827−913. doi: 10.1134/S0032945210100012
    [11] Yang JX, Chen YR. 1995. The Biology and Resource Utilization of the Fishes of Fuxian Lake, Yunnan. Kunming, China: Yunnan Science and Technology Press, 224. (in Chinese)
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出版历程
  • 收稿日期:  2020-10-04
  • 录用日期:  2021-01-18
  • 网络出版日期:  2021-02-01
  • 刊出日期:  2021-03-18

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