Melanostomias is a genus of barbeled dragonfishes.
Species
There are currently 17 recognized species in this genus: Melanostomias bartonbeani A. E. Parr, 1927 (Scaleless black dragonfish) Melanostomias biseriatus Regan & Trewavas, 1930 Melanostomias dio Villarins, Fischer, Prokofiev & Mincarone 2023 (Noronha dragonfish) Melanostomias globulifer Fowler, 1934 (Brightchin dragonfish) Melanostomias macrophotus Regan & Trewavas, 1930 Melanostomias margaritifer Regan & Trewavas, 1930 Melanostomias melanopogon Regan & Trewavas, 1930 Melanostomias melanops A. B. Brauer, 1902 Melanostomias niger Gilchrist & von Bonde, 1924 (Fangtooth dragonfish) Melanostomias nigroaxialis Parin & Pokhil'skaya, 1978 Melanostomias paucilaternatus Parin & Pokhil'skaya, 1978 (Spothead dragonfish) Melanostomias pauciradius Matsubara, 1938 (Three-ray dragonfish) Melanostomias pollicifer Parin & Pokhil'skaya, 1978 Melanostomias stewarti Fowler, 1934 Melanostomias tentaculatus (Regan & Trewavas, 1930) (Tentacle dragonfish) Melanostomias valdiviae A. B. Brauer, 1902 (Valdivia black dragonfish) Melanostomias vierecki Fowler, 1934