Melanostomias Brauer, 1902

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 : 55

Melanostomias Brauer, 1902

Diagnosis. Melanostomias can be distinguished in the Melanostomiinae by the dorsal and anal fins placed posteriorly in the body, near the caudal-fin base; anal-fin origin below dorsal-fin origin; pectoral fin without isolated rays; 3–7 (usually 5) pectoral-fin rays; 13–18 dorsal-fin rays; 16–21 anal-fin rays; jaw teeth long and depressible; 8 teeth on premaxilla; 4–5 teeth on maxilla; two pairs of teeth on basibranchials; palatine with 5 teeth; vomer with 1 tooth on each side; postorbital organ large; chin barbel present; body depth larger than 10% SL (Morrow, Gibbs, 1964; Parin, Pokhilskaya, 1978; McEachran, Fechhelm, 1998; Sutton et al., 2020). A total of 18 valid species (Fricke et al., 2022).