Dibrachichthys melanurus is a species of four-armed frogfish found in the eastern Indian Ocean and western Pacific Ocean near to Indonesia and Australia where they are found over soft bottoms at depths of . The males of this species grow to a length of SL while the females grow to a length of SL. This species is the only known member of its genus. References Lophiiformes Taxa named by Theodore Wells Pietsch III Fish described in 2009