StomiasStomias is a genus of barbeled dragonfishes. They live in the mesopelagic zone of all oceans and show diel vertical migration and sexual dimorphism (males are smaller, have larger eyes and larger postorbital photophores than females.SpeciesThere are currently nine recognized species in this genus:Stomias affinis Günther, 1887 Stomias atriventer Garman, 1899 Stomias boa * Stomias boa boa * Stomias boa colubrinus Garman, 1899* Stomias boa ferox J. C. H. Reinhardt, 1842Stomias brevibarbatus Ege, 1918Stomias danae Ege, 1933Stomias gracilis Garman, 1899Stomias lampropeltis Gibbs, 1969Stomias longibarbatus Stomias nebulosus Alcock, 1889