Oplegnathus

Oplegnathus is currently the sole recognized genus in the knifejaw family (Oplegnathidae) of marine perciform fishes.[5] The largest, the Cape knifejaw, can reach a maximum length around 90 cm (35 in). Knifejaws have teeth fused into a parrot-like beak in adulthood. They feed on barnacles and mollusks, and are fished commercially. They are native to the Indian and Pacific Oceans.[6]

Oplegnathus
Temporal range: Early Miocene to present[1]
O. fasciatus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Oplegnathidae
Bleeker, 1853[2]
Genus: Oplegnathus
J. Richardson, 1840
Type species
Oplegnathus conwaii
J. Richardson, 1840[3]
Synonyms[4]
  • Scaradon Temminck & Schlegel, 1844
  • Ichthyorhamphos Castelnau, 1861
  • Scarostoma Kner, 1867

Species

The currently recognized species in this genus are:[7]

  • Oplegnathus conwayi J. Richardson, 1840, 1840 (Cape knifejaw)
  • Oplegnathus fasciatus (Temminck & Schlegel, 1844) (striped beakfish or barred knifejaw)
  • Oplegnathus insignis (Kner, 1867) (Pacific beakfish)
  • Oplegnathus peaolopesi J. L. B. Smith, 1947 (Mozambique knifejaw)
  • Oplegnathus punctatus (Temminck & Schlegel, 1844) (spotted knifejaw)
  • Oplegnathus robinsoni Regan, 1916 (Natal knifejaw)
  • Oplegnathus woodwardi Waite, 1900 (knifejaw)

Timeline
QuaternaryNeogenePaleogeneHolocenePleist.MioceneOligoceneEocenePaleoceneQuaternaryNeogenePaleogeneHolocenePleist.MioceneOligoceneEocenePaleocene

References
  1. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Retrieved 2008-01-08.
  2. Richard van der Laan; William N. Eschmeyer & Ronald Fricke (2014). "Family-group names of Recent fishes". Zootaxa. 3882 (2): 001–230.
  3. Eschmeyer, W. N.; R. Fricke & R. van der Laan (eds.). "Oplegnathus". Catalog of Fishes. California Academy of Sciences. Retrieved 11 April 2020.
  4. Eschmeyer, W. N.; R. Fricke & R. van der Laan (eds.). "Oplegnathidae genera". Catalog of Fishes. California Academy of Sciences. Retrieved 11 April 2020.
  5. Froese, Rainer, and Daniel Pauly, eds. (2014). "Oplegnathidae" in FishBase. February 2014 version.
  6. J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. p. 437. ISBN 978-1-118-34233-6.
  7. Froese, Rainer and Pauly, Daniel, eds. (2014). Species of Oplegnathus in FishBase. February 2014 version.
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