Melanostomiinae

Villarins, Bárbara T., Dario, Fabio Di, Eduardo, Leandro N., Lucena-Frédou, Flávia, Bertrand, Arnaud, Prokofiev, Artem M. & Mincarone, Michael M., 2022, Deep-sea dragonfishes (Teleostei: Stomiiformes) collected from off northeastern Brazil, with a review of the species reported from the Brazilian Exclusive Economic Zone, Neotropical Ichthyology (e 220004) 20 (2), pp. 1-78 : 45

Melanostomiinae

Members of the Melanostomiinae can be recognized in the Stomiidae by the body relatively elongate; snout short; mouth large to extremely large; chin barbel usually present, ranging from very short to longer than body, barbel simple to complex; skin between lower jaws present in all species; dorsal-fin origin usually opposite to anal-fin origin (except in Eustomias and Flagellostomias ), both fins located far behind the pelvic fin; dorsal adipose fin absent, except in Chirostomias Regan & Trewavas, 1930 ; scales absent, body without hexagonal patterns; suborbital and postorbital light organs usually present, preorbital luminous organ absent; photophores in 2 continuous rows along flanks and ventral portion of the body (Gibbs, 1986c; Kenaley, Stewart, 2015h; Nelson et al., 2016). Sixteen genera (Fricke et al., 2022).