Ichthyological Research

, Volume 45, Issue 1, pp 7–11 | Cite as

Hemimyzon nanensis, a new balitorid fish from the chao phraya basin, thailand

  • Atsushi Doi
  • Maurice Kottelat


A new balitorid fish,Hemimyzon nanensis, is described from the Mae Nam Nan River basin, a tributary of the Chao Phraya River, in northern Thailand. This species is distinguishable from its congeners by the following unique combination of characters: pectoral fin with 9–11 simple and 10–12 branched, rays; pelvic fin with 3–4 (usually 3) simple and 8–9 (usually 9) branched rays; 59–63 total lateral line scales; distance between pelvic fin bases 8.1–9,6% SL.H. nanensis is the first species of the genus recorded outside China and Taiwan.

Key words

Balitoridae Hemimyzon nanensis sp. nov Chao Phraya basin Thailand 


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Copyright information

© The Ichthyological Society of Japan 1998

Authors and Affiliations

  1. 1.Laboratory of IchthyologyTokyo University of FisheriesTokyoJapan
  2. 2.School of Biological SciencesNational University of SingaporeKent RidgeSingapore

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