Lefua is a genus of stone loaches native to East Asia. Members of this genus possess nostrils (usually one pair) and barbels around their mouths (usually 4 pairs, with one pair being directly anterior to the nostrils). They generally have column-shaped bodies and are good swimmers.
Species There are currently eight recognized species in this genus: Lefua costata (Kessler, 1876) (Eightbarbel loach, Continental eight barbeled loach) Lefua echigonia D. S. Jordan & R. E. Richardson, 1907 (Japanese eight barbeled loach) Lefua nikkonis (D. S. Jordan & Fowler, 1903) (ainu eight barbeled loach) Lefua nishimurai <small>Katayama in''' Katayama & Sawada, 2024</small> Lefua pleskei (Herzenstein, 1888) Lefua sayu (Herre & S. Y. Lin, 1936) Lefua tokaiensis Hosoya, Ito & Miyazaki, 2019 (tokai stream eight barbeled loach) Lefua torrentis'' Hosoya, Ito & Miyazaki, 2018 (stream eight barbeled loach)
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