Chirostomias

Chirostomias pliopterus is a species of barbeled dragonfish found in the Atlantic Ocean. This species grows to a length of 20.5 cm SL. This species is the only described member of its genus. This scaleless dragonfish was also the first discovered life form to emit a red light, with the second being a siphonophore of the genus Erenna. Later, related Stomiid genera Aristostomias, Malacosteus and Pachystomias were also found to emit red light.