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Schistura sexnubes, a new diminutive river loach from the upper Mekong basin, Yunnan Province, China (Teleostei:Cypriniformes:Nemacheilidae)

Marco Endruweit

Marco Endruweit. Schistura sexnubes, a new diminutive river loach from the upper Mekong basin, Yunnan Province, China (Teleostei:Cypriniformes:Nemacheilidae). Zoological Research, 2014, 35(1): 59-66. doi: 10.11813/j.issn.0254-5853.2014.1.059
Citation: Marco Endruweit. Schistura sexnubes, a new diminutive river loach from the upper Mekong basin, Yunnan Province, China (Teleostei:Cypriniformes:Nemacheilidae). Zoological Research, 2014, 35(1): 59-66. doi: 10.11813/j.issn.0254-5853.2014.1.059

Schistura sexnubes, a new diminutive river loach from the upper Mekong basin, Yunnan Province, China (Teleostei:Cypriniformes:Nemacheilidae)

doi: 10.11813/j.issn.0254-5853.2014.1.059
详细信息
    通讯作者:

    Marco Endruweit

Schistura sexnubes, a new diminutive river loach from the upper Mekong basin, Yunnan Province, China (Teleostei:Cypriniformes:Nemacheilidae)

  • 摘要: An ichthyofaunistic survey of Mekong tributaries in Lincang Prefecture, Yunnan Province, China yielded a new species of nemacheilid loach, herein described as Schistura sexnubes species nova. The new species is readily distinguishable from its congeners by the following combination of characters: 8+8 branched caudal fin rays, an incomplete lateral line, a dissociated caudal bar, a shallow caudal peduncle depth (7.6%-9.6% SL; respectively caudal peduncle 1.76-1.95 times longer than deep), a diminutive size of less than 50 mm SL, and no sexual dimorphism. A dorsocephalic pattern consisting of a black, forward directed V-shaped formation located between the nares, and a white, ovoid blotch on the upper operculum serves as an autapomorphy.
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出版历程
  • 收稿日期:  2013-01-29
  • 修回日期:  2013-02-26
  • 刊出日期:  2014-01-08

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