Barathronus

Barathronus is a genus of deep-sea fish that are placed in the family Aphyonidae (blind cusk eels) or family Bythitidae (brotulas), depending on the source.

Life cycle
Barathronus are viviparous deep-sea fish. However, a juvenile Barathronus pacificus has been recorded in shallow waters. Based on the stable oxygen isotope composition of otoliths, at least one species, Barathronus maculatus, has a pelagic larval stage, followed by an ontogenetic vertical migration to deeper waters.

Species
There are currently 10 recognized species in this genus, although the exact species differ between the FishBase and the Catalog of Fishes:


 * 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, 1974
 * Barathronus parfaiti (Vaillant, 1888)
 * Barathronus roulei J. G. Nielsen, 2019
 * Barathronus solomonensis J. G. Nielsen & Møller, 2008 — recognized as Paraphyonus solomonensis in the Catalog of Fishes
 * Barathronus unicolor J. G. Nielsen, 1984