Environmental Biology of Fishes

, Volume 23, Issue 1–2, pp 65–94 | Cite as

Revision of Yunnanilus with descriptions of a miniature species flock and six new species from China (Cypriniformes: Homalopteridae)

  • Maurice Kottelat
  • Chu Xin-Luo
Full paper


The genus Yunnanilus Nichols, 1925 is revised; Eonemachilus Berg, 1938 is a junior subjective synonym. Yunnanilus includes at least nine described species and five undescribed species. The status of Y. salmonides Chaudhuri is still incertae sedis. Six new species are described: Y. parvus, Y. altus, Y. pachycephalus, Y. niger, Y. macrogaster and Y. paludosus. The last three species occur sympatrically in a small endorheic basin of eastern Yunnan; they developed different feeding specializations which allowed them to use different niches. Other species also have peculiar specializations. The diversity of feeding habits and related adaptations in Yunnanilus is greater than in the whole subfamily Nemacheilinae and is one more example of supralimital specialization. Speciation of fishes on the Yunnan Plateau is discussed. Several species are endangered or possibly extinct.

Key words

Fishes Yunnan Burma Endemism Systematics Extinction 


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Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • Maurice Kottelat
    • 1
  • Chu Xin-Luo
    • 2
  1. 1.Laboratoire d'IchthyologieDelémontSwitzerland
  2. 2.Kunming Institute of ZoologyAcademia SinicaKunming, YunnanThe People's Republic of China

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