''Chirostomias pliopterus'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

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 ...

found in the

Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...

. This species grows to a length of 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 Siphonophorae (from Ancient Greek σίφων (siphōn), meaning "tube" and -φόρος (-phóros), meaning "bearing") is an order within Hydrozoa, a class of marine organisms within the phylum Cnidaria. According to the World Register of Marine ...

of the genus ''

Erenna ''Erenna'' is a genus of cnidarians Cnidaria ( ) is a phylum under kingdom Animalia containing over 11,000 species of aquatic invertebrates found both in fresh water, freshwater and marine environments (predominantly the latter), including j ...

''. Later, related

Stomiid Stomiidae is a 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 strong sexual dimorp ...

genera ''

Aristostomias ''Aristostomias'' is a genus of barbeled dragonfishes native to the ocean depths in the Pacific, Atlantic and Indian Ocean, Indian oceans. Red Light Bioluminescence Production of red light bioluminescence Similar to other deep-sea organisms ...

'', '' Malacosteus'' and ''

Pachystomias ''Pachystomias microdon'', the smalltooth dragonfish, is a species of barbeled dragonfish found in the oceans at depths of from . This species grows to a length of SL. This species is the only known species in its genus. Red Light Biolumine ...

'' were also found to emit red light.

References

* Stomiidae Taxa named by Charles Tate Regan Fish described in 1930 Taxa named by Ethelwynn Trewavas {{Stomiiformes-stub