Liobagrus is a genus of catfishes of the family Amblycipitidae. Liobagrus fishes are distributed in the Yangtze River basin, Taiwan, Japan, and the Korea Peninsula. The adipose fin of these fishes is a confluent with the caudal fin. The nostrils are far apart, unlike those found in Amblyceps. Most Liobagrus species grow to about 100 millimetres (3.94 in) SL. Taxonomy No shared derived characteristic has been found to diagnose the genus Liobagrus. However, it is maintained that this genus is currently monophyletic. Liobagrus has been placed in the family Bagridae. Later, it was found to more closely resemble Amblyceps, and was transferred to Amblycipitidae. Xiurenbagrus was erected because Liobagrus would not be monophyletic with Liobagrus xiurenensis, now Xiurenbagrus xiurenensis. The genera Amblyceps and Liobagrus are sister group pair that is, in turn, sister to Xiurenbagrus. Species There are currently 15 recognized species in this genus: Liobagrus aequilabris J. J. Wright & H. H. Ng, 2008 Liobagrus andersoni Regan, 1908 Liobagrus anguillicauda Nichols, 1926 Liobagrus chenghaiensis Z. W. Sun, S. J. Ren & E. Zhang, 2013 Liobagrus formosanus Regan, 1908 Liobagrus hyeongsanensis S. H. Kim, H. S. Kim & J. Y. Park, 2015 Liobagrus kingi T. L. Tchang, 1935 Liobagrus marginatoides (H. W. Wu, 1930) Liobagrus marginatus (Günther, 1892) Liobagrus mediadiposalis T. Mori, 1936 Liobagrus nigricauda Regan, 1904 Liobagrus obesus Y. M. Son, I. S. Kim & I. Y. Choo, 1987 (Bull-head torrent catfish) Liobagrus reinii Hilgendorf, 1878 Liobagrus somjinensis J. Y. Park & S. H. Kim, 2010 Liobagrus styani Regan, 1908 References Amblycipitidae Fish of Asia Catfish genera Taxa named by Franz Martin Hilgendorf Freshwater fish genera