Pseudobagrus is a genus of bagrid catfishes that inhabit streams and rivers throughout East Asia. About half of these species occur in China.
The two Coreobagrus species, C. brevicorpus and C. ichikiwai, are both treated in some recent literature as valid in Pseudobagrus. It has been noted that Pelteobagrus may not be monophyletic if species placed in Pseudobagrus and Coreobagrus were excluded. The taxonomy of this genus is unclear and many authorities treat it as a junior synonym of Tachysurus.
Pseudobagrus species are small- to mid-sized bagrid catfishes. These fish all have an inferior mouth; narial openings widely separated; four pairs of barbels; top of head covered by skin in most species; two dorsal fin spines; pelvic fin small; and caudal fin emarginate, truncate or round.
One fossil species, P. ikiensis Watanabe & Uyeno, is known from the Middle Miocene of Japan.
Species
There are currently 32 recognized species in this genus: Pseudobagrus adiposalis Ōshima, 1919 Pseudobagrus albomarginatus (Rendahl (de), 1928) Pseudobagrus analis (Nichols, 1930) Pseudobagrus aurantiacus (Temminck & Schlegel, 1846) Pseudobagrus brachyrhabdion J. L. Cheng, Ishihara & E. Zhang, 2008 Pseudobagrus brevianalis Regan, 1908 Pseudobagrus brevicaudatus (H. W. Wu, 1930) Pseudobagrus crassilabris (Günther, 1864) Pseudobagrus eupogoides H. W. Wu, 1930 Pseudobagrus fui C. P. Miao, 1934 Pseudobagrus gracilis Jie Li, X. L. Chen & B. P. L. Chan, 2005 Pseudobagrus hwanghoensis (T. Mori, 1933) Pseudobagrus kaifenensis (T. L. Tchang, 1934) Pseudobagrus koreanus Uchida, 1990 Pseudobagrus kyphus Đ. Y. Mai, 1978 Pseudobagrus medianalis (Regan, 1904) Pseudobagrus microps (Rendahl (de), 1932) Pseudobagrus nubilosus H. H. Ng & Freyhof, 2007 Pseudobagrus omeihensis (Nichols, 1941) Pseudobagrus ondon T. H. Shaw, 1930 Pseudobagrus pratti (Günther, 1892) Pseudobagrus rendahli (Pellegrin & P. W. Fang, 1940) Pseudobagrus sinyanensis (T. S. Fu, 1935) Pseudobagrus taeniatus (Günther, 1873) Pseudobagrus taiwanensis Ōshima, 1919 Pseudobagrus tenuifurcatus (Nichols, 1931) Pseudobagrus tenuis (Günther, 1873) Pseudobagrus tokiensis Döderlein (de), 1887 Pseudobagrus trilineatus (C. Y. Zheng, 1979) Pseudobagrus truncatus (Regan, 1913) Pseudobagrus vachelli Pseudobagrus wangi C. P. Miao, 1934