loos, Gastromyzon Mai [D. Y.] 1978:217, Fig. 101 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Song La basin, northern Vietnam. Syntypes: DVZUT. •Status uncertain -- (Kottelat 2001:47 [ref. 25482], Kottelat 2012:58 [ref. 32367], Kottelat 2013:191 [ref. 32989]). •Valid as Beaufortia loos (Mai 1978) -- (Endruweit 2025:22 [ref. 42401]). Current status: Valid as Beaufortia loos (Mai 1978). Gastromyzontidae. Distribution: Southeast Asia: Red River system (Vietnam). Habitat: freshwater.