''Barathronus'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of deep-

sea A sea is a large body of salt water. There are particular seas and the sea. The sea commonly refers to the ocean, the interconnected body of seawaters that spans most of Earth. Particular seas are either marginal seas, second-order section ...

fish that are placed in the family

Aphyonidae Aphyonidae is a family (biology), family of eel-like fishes in the order Ophidiiformes. They are found in tropical and subtropical waters throughout the world. They are deep-sea fishes, living between and depth. Description and biology Aphyoni ...

(blind cusk eels) or family

Bythitidae The viviparous brotulas form a family, the Bythitidae, of ophidiiform fishes. They are known as viviparous brotulas as they generally bear live young, although there are indications that some species (at least '' Didymothallus criniceps'') do n ...

(brotulas), depending on the source.

Life cycle

''Barathronus'' are

viviparous In animals, viviparity is development of the embryo inside the body of the mother, with the maternal circulation providing for the metabolic needs of the embryo's development, until the mother gives birth to a fully or partially developed juve ...

deep-sea fish. However, a juvenile '' Barathronus pacificus'' has been recorded in shallow waters. Based on the stable oxygen isotope composition of

otolith An otolith (, ' ear + , ', a stone), also called otoconium, statolith, or statoconium, is a calcium carbonate structure in the saccule or utricle (ear), utricle of the inner ear, specifically in the vestibular system of vertebrates. The saccule ...

s, at least one species, '' Barathronus maculatus'', has a pelagic larval stage, followed by an

ontogenetic Ontogeny (also ontogenesis) is the origination and development of an organism (both physical and psychological, e.g., moral development), usually from the time of fertilization of the egg to adult. The term can also be used to refer to the stu ...

vertical migration to deeper waters.

Species

There are currently 10 recognized

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), ...

in this genus, although the exact species differ between the

FishBase FishBase is a global species database of fish species (specifically finfish). It is the largest and most extensively accessed online database on adult finfish on the web.

and the

Catalog of Fishes Catalog of Fishes is a comprehensive on-line database and reference work on the scientific names of fish species and genera. It is global in its scope and is hosted by the California Academy of Sciences. It has been compiled and is continuously up ...

: * '' Barathronus affinis'' A. B. Brauer, 1906 * '' Barathronus bicolor'' Goode & T. H. Bean, 1886 * '' Barathronus bruuni'' J. G. Nielsen, 1969 * '' Barathronus diaphanus'' A. B. Brauer, 1906 * '' Barathronus linsi'' J. G. Nielsen, Mincarone & di Dario, 2015 — not listed in the FishBase * '' Barathronus maculatus'' Shcherbachev, 1976 (Spotted gelatinous cusk) * '' Barathronus multidens'' J. G. Nielsen, 1984 * '' Barathronus pacificus'' J. G. Nielsen &

Eagle Eagle is the common name for the golden eagle, bald eagle, and other birds of prey in the family of the Accipitridae. Eagles belong to several groups of Genus, genera, some of which are closely related. True eagles comprise the genus ''Aquila ( ...

, 1974 * '' Barathronus parfaiti'' ( Vaillant, 1888) * '' Barathronus roulei'' J. G. Nielsen, 2019 * '' Barathronus solomonensis'' J. G. Nielsen & Møller, 2008 — recognized as ''

Paraphyonus ''Paraphyonus'' is a genus of blind cusk eels found in the Atlantic, Indian and Pacific Oceans. This genus was created for species formerly classified under ''Aphyonus'' when sampling of specimens showed that the type species of ''Aphyonus'', ' ...

solomonensis'' in the Catalog of Fishes * '' Barathronus unicolor'' J. G. Nielsen, 1984

References

{{Taxonbar, from=Q740757 Aphyonidae Marine fish genera Taxa named by George Brown Goode Taxa named by Tarleton Hoffman Bean