Abstract

A new species of spined loach, Cobitis takenoi sp. n., is described based on the holotype and ten paratypes collected from Tango District, Honshu Island, Japan. The new species is distinguished by a combination of the following character states: 1) the lamina circularis at the base of the pectoral fin in adult male having a simple roundish plate form; 2) a narrowing of the upper segments of the first branched ray of the pectoral fin; 3) a short maxillary barbel whose length equals diameter of the eye; 4) 14 prepelvic myotomes, and 5) L3 and L5 well developed, forming longitudinal obvious stripes in males during the spawning season.

Highlights

  • The genus Cobitis Linnaeus, 1758 (Cypriniformes: Cobitidae) includes small, slenderbodied benthic freshwater fishes

  • There is a risk of this new species being commercially overfished for the ornamental fish market (Takeno et al 2010, Kitagawa 2015)

  • The last two branched rays articulating on the last complex pterygiophore of the dorsal and anal fins were counted as one ray

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Summary

Introduction

The genus Cobitis Linnaeus, 1758 (Cypriniformes: Cobitidae) includes small, slenderbodied benthic freshwater fishes. I examined 11 specimens collected from a small river in Tango District, Kyoto Prefecture, Honshu Island, Japan (Figs 1, 2).

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