Huso is a genus of large sturgeons from Eurasia. It contains two species, which both are critically endangered:Huso dauricus (Georgi, 1775) (kaluga)Huso huso (Linnaeus, 1758) (beluga)Recent data indicate a polyphyletic origin of the genus Huso, and it is suggested that the two Huso species should be included in the genus Acipenser.