Pseudobagrus Explained

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.^[1] The taxonomy of this genus is unclear and many authorities treat it as a junior synonym of Tachysurus.^[2]

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.^[3]

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^[4]
• 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^[5]
• 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^[6]
• 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^[7]
• Pseudobagrus wangi C. P. Miao, 1934

References

1. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Carl J. Jr.. Ferraris. Zootaxa. 1418. 1–628. 2007. 10.11646/zootaxa.1418.1.1.
2. Maurice Kottelat . 2013 . Inland fishes of Southeast Asia . 266 . The Raffles Bulletin of Zoology . Supplement No 27 . https://web.archive.org/web/20150106232024/http://lkcnhm.nus.edu.sg/nus/pdf/PUBLICATION/Raffles%20Bulletin%20of%20Zoology/Supplements/Supplement%2027/rbz_S27.pdf . 2015-01-06 .
3. Watanabe, K. and Uyeno, T.; Fossil bagrid catfishes from Japan and their zoogeography, with description of a new species, Pseudobagrus ikiensis: Ichthyological Research Volume 46, Number 4, 397-412
4. Cheng. JL. Ishihara, H. . Zhang, E. . 2008. Pseudobagrus brachyrhabdion, a new catfish (Teleostei: Bagridae) from the middle Yangtze River drainage, South China. Ichthyological Research. 55. 112–123. 10.1007/s10228-007-0020-3. 2. 36319313 .
5. A new species of Pseudobagrus (Teleostei: Siluriformes: Bagridae) from southern China. Jie. Li. Chen, Xianglin . Chan, Bosco P.L. . Zootaxa. 1067. 49–57. 2005. 10.11646/zootaxa.1067.1.3. 86000113 .
6. Pseudobagrus nubilosus, a new species of catfish from central Vietnam (Teleostei: Bagridae), with notes on the validity of Pelteobagrus and Pseudobagrus. Heok Hee. Ng. Freyhof, Jörg . Ichthyol. Explor. Freshwaters. 18. 1. 9–16. March 2007.
7. Zhang, G., Wang, R., Mao, J., Yin, S., Tao, P., Chen, J., ... & Chen, S. (2016). The complete mitochondrial genome and phylogenic analysis of Pseudobagrus vachelli. Mitochondrial DNA Part A, 27(5), 3551-3552.