Taxonomic revision of the Southeast Asian brook barb genus Poropuntius Smith, 1931 (Teleostei, Cyprinidae) with description of a new species from Vietnam Author Hoang, Huy Duc 0000-0001-6528-193X Department of Ecology and Evolutionary Biology, University of Science, Ho Chi Minh City, Vietnam & Vietnam National University, Ho Chi Minh City, Vietnam Author Pham, Hung Manh 0000-0003-3186-818X Department of Ecology and Evolutionary Biology, University of Science, Ho Chi Minh City, Vietnam & Vietnam National University, Ho Chi Minh City, Vietnam Author Tran, Ngan Trong 0000-0001-7254-2835 Department of Ecology and Evolutionary Biology, University of Science, Ho Chi Minh City, Vietnam & Vietnam National University, Ho Chi Minh City, Vietnam Author Durand, Jean-Dominique 0000-0002-0261-0377 IRD, MARBEC (University of Montpellier, CNRS, Ifremer, IRD), Montpellier, France Author Wu, Ling https://orcid.org/0009-0001-5700-1616 Southeast Asia Wildlife Biodiversity Research Group, Kunming Institute of Zoology, the Chinese Academy of Sciences, Kunming, Yunnan 650223, China & Southeast Asia Biodiversity Research Institute, Chinese Academy of Science, Yezin, Nay Pyi Taw 05282, Myanmar Author Pfeiffer, John 0000-0001-5368-0589 Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, 10 th and Constitution Avenue NW, Washington, DC 20560, USA Author Chen, Xiao-Yong 0000-0002-0924-5560 Southeast Asia Wildlife Biodiversity Research Group, Kunming Institute of Zoology, the Chinese Academy of Sciences, Kunming, Yunnan 650223, China & Southeast Asia Biodiversity Research Institute, Chinese Academy of Science, Yezin, Nay Pyi Taw 05282, Myanmar Author Page, Lawrence M. 0000-0002-8823-0729 Florida Museum of Natural History, University of Florida, 1659 Museum Road, Gainesville, FL 32611, USA text ZooKeys 2024 2024-06-06 1204 199 222 journal article 298187 10.3897/zookeys.1204.120873 57bd1d90-6de1-40c8-98a7-acac50ba37d2 34FB4522-549E-48D1-9E88-B9165112E9CC Poropuntius kontumensis (Chevey, 1934) Cyclocheilichthys kontumensis Chevey, 1934: 32 , fig. 1. Type locality: Vietnam , Annam, Pleiku Province , Kontum Lake [ Mekong River drainage ]. Types unknown . Acrossocheilus yalyensis Nguy ễn, in Nguy ễn and Ngô 2001: 393 , fig. 193. Type locality: Vietnam , Kon Tum Province , Sông Sesan [river]. Holotype : NCNTTSI H. 01.72.15.01 . Notes. The five specimens of Poropuntius kontumensis (Fig. 4 A ) and Acrossocheilus yalyensis were collected in the Kratie – Stung Treng ecoregion from their type localities and were genetically identical. Poropuntius kontumensis and P. deauratus . Poropuntius kontumensis from A Kratie – Stung Treng ecoregion (the Sesan drainage), UNS 2018-2201; P. deauratus from B northern Annam, UNS 2017-0310 C northern Annam, UNS 2018-2502 D southern Annam, UNS 2018-0801 E Mekong Delta (the Đ ồng Nai drainage) UNS 2017-1612 F Khorat Plateau (Sepon drainage), UNS 2018-0904 G upper Srepok drainage, UNS 2015-2301 H lower Srepok drainage’s pool, UNS 2015-3006. All photographed in life. Scales bars: 10 mm. Distribution. Poropuntius kontumensis occurs in the Kratie-Stung Treng ecoregion.