Leptostomias gladiatorLeptostomias gladiator is a species of fish in the family Stomiidae. It is sometimes called the scaleless dragonfish, but that name is shared with many other species.DescriptionLeptostomias gladiator has a slender body, blackish brown to deep black. The bulb of its barbel is creamy yellow, and its photophores are violet. Its length is maximum. It has 19–22 dorsal soft rays and 23–29 anal soft rays. It has 77 vertebrae.HabitatLeptostomias gladiator lives in non-polar oceans worldwide. It is bathypelagic, living at depths up to.BehaviourLeptostomias gladiator eats lanternfish.