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Hemimyzon sheni, a new species of balitorid fish (Teleostei: Balitoridae) from Taiwan

  • I-Shiung ChenEmail author
  • Lee-Shing FangEmail author
Article

Abstract

A new balitord fish, Hemimyzon sheni n. sp. was collected from the Tar-Ju River basin, Taitung County, southeast Taiwan. The new endemic species can be distinguished from other congeneric species by a combination of the following features: (1) dorsal fin rays 3 + 8, pectoral fin rays 13+11 (total 24); (2) lateral-line scales 78–80 and predorsal scales 31–32; (3) somewhat pointed head shape; (3) small pelvic fin which does not extend to rear vertical of dorsal fin; (4) position of anus close to anal fin base; and (5) predorsal region with many very small light brown marks and unmarked pectoral fin. A diagnostic key to three nominal, endemic species of Hemimyzon from Taiwan is also provided in this paper.

Keywords

Hemimyzon New fish Endemic species Balitoridae Fish fauna Fish taxonomy Taiwan 

Notes

Acknowledgments

The authors are very grateful to S.H. Chen, National Taiwan Normal University, Taipei for his very kindly providing type specimens of this new loach found in high mountain streams of Taiwan, and to S.C. Shen, National Taiwan University, Taipei for providing the opportunity to examine the freshwater fish collection in NTUM. Authors extend the thanks to J.H. Huang, National Taiwan Normal University for making the photographs and also S. H. Su, National Taiwan Ocean University, Keelung for assistance on data assessment. The research is partly supported by the grant of NSC, Taipei in 2007 for first author.

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.Institute of Marine Biology and Department of Life ScienceNational Taiwan Ocean UniversityTaiwanRepublic of China
  2. 2.Cheng Shiu UniversityTaiwanRepublic of China

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