Eustomias Vaillant, 1884 Neostomias Gilchrist, 1906 Pareustomias Bailly, 1930 Achirostomias Regan & Trewavas, 1930 Dinematochirus Regan & Trewavas, 1930 Haploclonus Regan & Trewavas, 1930 Nominostomias Regan & Trewavas, 1930 Rhynchostomias Regan & Trewavas, 1930 Spilostomias Regan & Trewavas, 1930 Triclonostomias Regan & Trewavas, 1930 Urostomias Regan & Trewavas, 1930 Parastomias Roule & Angel, 1931 Biradiostomias Gomon & Gibbs, 1985 Eustomias is a genus of barbeled dragonfishes native to the oceanic depths of the Indian, Atlantic and Pacific oceans.

There are currently 121 recognized species in this genus:[1]