''Echiostoma barbatum'', the threadfin dragonfish, is a species of

barbeled dragonfish Stomiidae is a family (biology), family of deep-sea ray-finned fish, including the barbeled dragonfishes, that live in all oceans in a wide range of depths. They are quite small, usually around 15 cm, up to 26 cm, and they exhibit a st ...

and is the only known species in its genus. It is widespread through tropical to temperate waters in all oceans in mid to deep waters up to . This species grows to a length of SL. Like many fish that live in the

Mesopelagic zone The mesopelagic zone (Greek μέσον, middle), also known as the middle pelagic or twilight zone, is the part of the pelagic zone that lies between the photic epipelagic and the aphotic bathypelagic zones. It is defined by light, and begins ...

the threadfin dragonfish uses

bioluminescent Bioluminescence is the emission of light during a chemiluminescence reaction by living organisms. Bioluminescence occurs in multifarious organisms ranging from marine vertebrates and invertebrates, as well as in some fungi, microorganisms inc ...

organs to attract prey.

References

* Stomiidae Taxa named by Richard Thomas Lowe Fish described in 1843 {{Stomiiformes-stub