Liobagrus huaiheensis, a new species of catfish, is described from the Shihe River, a tributary of the Huaihe River, in Henan Province, Central China. It shares a serrated posterior edge of the pectoral-fin spine with L. marginatus, L. nigricauda, L. kingi, L. chenghaiensis, L. andersoni, L. mediadiposalis, L. obesus, L. somjinensis, and L. hyeongsanensis, but it is distinguished from these nine species by having combination of the following characters: 2?3 serrations on the posterior edge of the pectoral-fin spine; 15?17 anal-fin rays; an upper jaw longer than lower one; a rounded caudalfin with 50?55 rays; 35?37 post-Weberian vertebrae; anus close to pelvic-fin insertion and an adipose-fin posteriorly continuous with caudal-fin, with a marked incision at confluence. Fish in the genus Liobagrus are widely distributed in the upper reaches of rivers and mountain streams below 1500 meters above sea level in South and Central China, Japan, and the Korean Peninsula (Ding 1994, He 1999, Wright & Ng 2008). Sixteen species of Liobagrus have been described: L. reinii Hilgendorf, 1878, L. marginatus (G?nther, 1892), L. nigricauda Regan, 1904, L. formosanus Regan, 1908, L. styani Regan, 1908, L. andersoni Regan, 1908, L. nantoensis Oshima, 1919, L. anguillicauda Nichols, 1926, L. marginatoides (Wu, 1930), L. kingi Tchang, 1935, L. mediadiposalis Mori, 1936, L. obesus Son, Kim & Choo, 1987, L. aequilabris Wright and Ng, 2008, L. somjinensis Park & Kim, 2010, L. chenghaiensis Sun, Ren & Zhang, 2013 and L. hyeongsanensis Kim, Kim & Park, 2015 (He, 1999, Sun et al. 2013, Kim, Kim & Park, 2015, Xie, 2017). These species can be divided into two groups based on whether they have a smooth or serrated posterior edge of the pectoral-fin spine (Wu et al. 2013, Sun et al. 2013). Four Liobagrus species with a serrated posterior edge to the pectoral-fin spine have been reported in China?s upper
