Barathronus

Barathronus is a genus of deep-sea fish that are placed in the family Aphyonidae (blind cusk eels)[2][3] or family Bythitidae (brotulas),[1][4] depending on the source.

Barathronus
Barathronus bicolor
Barathronus parfaiti
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Ophidiiformes
Family: Aphyonidae
Genus: Barathronus
Goode & T. H. Bean, 1886
Type species
Barathronus bicolor
Goode & Bean, 1886
Synonyms[1]

Alexeterion Vaillant 1888

Life cycle

Barathronus are viviparous deep-sea fish. However, a juvenile Barathronus pacificus has been recorded in shallow waters.[5] 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.[6]

Species

There are currently 10 recognized species in this genus, although the exact species differ between the FishBase[2] and the Catalog of Fishes:[1]

  • 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 [7] — 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

References
  1. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Barathronus". Catalog of Fishes. California Academy of Sciences. Retrieved 30 June 2018.
  2. Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Barathronus in FishBase. February 2017 version.
  3. Nelson, JS; Grande, TC & Wilson, MVH (2016). Fishes of the World 5th Edition. ISBN 9781119220824. Retrieved 30 June 2018.
  4. Nelson, J. S. (2006). Fishes of the World (4 ed.). Hoboken, NJ: John Wiley & Sons. p. 247. ISBN 978-0-471-25031-9.
  5. Okiyama, Muneo; Kato, Hisatsugu (1997). "A pelagic juvenile of Barathronus pacificus (Ophidiiformes: Aphyonidae) from the Southwest Pacific, with notes on its metamorphosis". Ichthyological Research. 44 (2–3): 222–226. doi:10.1007/BF02678701. S2CID 13485017.
  6. Chang, N. N.; Liu, E. Y.; Liao, Y. C.; Shiao, J. C. (2015). "Vertical habitat shift of viviparous and oviparous deep-sea cusk eels revealed by otolith microstructure and stable-isotope composition". Journal of Fish Biology. 86 (2): 845–853. doi:10.1111/jfb.12605. PMID 25613184.
  7. Nielsen, J.G.; Mincarone, M.M. & Di Dario, F. (2015). "A new deep-sea species of Barathronus Goode & Bean from Brazil, with notes on Barathronus bicolor Goode & Bean (Ophidiiformes: Aphyonidae)" (PDF). Neotropical Ichthyology. 13 (1): 53–60. doi:10.1590/1982-0224-20140034.
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