Ptychobarbus is a genus of cyprinid fish that is found in rivers, streams and lakes in the Himalayas and Tibetan Plateau of China, India, Nepal and Pakistan, extending into the highlands of Afghanistan. They reach up to in weight and about in total length. They mostly feed on benthic invertebrates, but will also take planktonic organisms, aquatic plants and algae.Qi, D.; Y. Chao; S. Guo; L. Zhao; T. Li; F. Wei; and X. Zhao (2012). Convergent, Parallel and Correlated Evolution of Trophic Morphologies in the Subfamily Schizothoracinae from the Qinghai-Tibetan Plateau. PLoS ONE 7(3): e34070.
Ptychobarbus has been a part of the schizothoracines (snowtrout and allies), however, Eschmeyer's Catalog of Fishes classifies this genus in the subfamily Schizopygopsinae.
Species Pytochobarbus contains the following species: Ptychobarbus chungtienensis (W. H. Tsao, 1964) (Heavy lips fish) Ptychobarbus conirostris Steindachner, 1866 (Indus snowtrout) Ptychobarbus dipogon (Regan, 1905) Ptychobarbus kaznakovi A. M. Nikolskii, 1903 Ptychobarbus leptosomus C. G. Zhang, Y. H. Zhao & C. Y. Niu, 2019
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