Leptostomias gladiator

Leptostomias gladiator is a species of fish in the family Stomiidae (barbeled dragonfish). It is sometimes called the scaleless dragonfish, but that name is shared with many other species.

Description
Leptostomias 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 37.3 cm. It has 19–22 dorsal soft rays and 23–29 anal soft rays. It has 77 vertebrae.

Habitat
Leptostomias gladiator lives in non-polar oceans worldwide. It is bathypelagic, living at depths up to 5000 m.

Behaviour
Leptostomias gladiator eats lanternfish.