hypothrix, Esomus Endruweit [M.] 2025:79, Fig. 67 [Fishes of the Red River - Cypriniformes, Siluriformes; ref. 42401] Quanh Creek, Ma River system, at Trung Son, Quan Hóa District, Thanh Hóa Province, Vietnam. Holotype: KIZ 2015003856. Paratypes: KIZ 2015003855, 857 (2); RIA1 1136-1137 (2). •Valid as Esomus hypothrix Endruweit 2025. Current status: Valid as Esomus hypothrix Endruweit 2025. Danionidae: Esominae. Distribution: Southeast Asia: Ma River drainage, Thanh Hóa Province (northern Vietnam). Habitat: freshwater.