Polydactylus

Polydactylus is a genus of threadfin that mainly are native to the Indian, Atlantic and Pacific Oceans, especially in coastal or brackish waters (such as mangrove or estuaries).[2][3] Some may even enter rivers and a single, P. macrophthalmus, is a freshwater fish from rivers in Borneo.[3]

Polydactylus
Young Polydactylus plebeius
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Polynemidae
Genus: Polydactylus
Lacépède, 1803[1]
Type species
Polydactylus plumierii, a synonym of Polydactylus virginicus
Lacepède, 1803

Most species do not surpass 72 cm (2.4 ft) in standard length, but two can reach up to 1.7–2 m (5.6–6.6 ft).[3]

Species

There are currently 21 species in the genus:[3]

  • Polydactylus approximans (Lay & Bennett, 1839) (Blue bobo)
  • Polydactylus bifurcus Motomura, Kimura & Iwatsuki, 2001 (Slender fivefinger threadfin)
  • Polydactylus longipes Motomura, Okamoto & Iwatsuki, 2001 (Long-limb threadfin)
  • Polydactylus luparensis Lim, Motomura & Gambang, 2010 (Sarawak giant threadfin)
  • Polydactylus macrochir (Günther, 1867) (King threadfin)
  • Polydactylus macrophthalmus (Bleeker, 1858) (River threadfin)
  • Polydactylus malagasyensis Motomura & Iwatsuki, 2001 (African blackspot threadfin)
  • Polydactylus microstomus (Bleeker, 1851) (Smallmouth threadfin)
  • Polydactylus mullani (Hora, 1926) (Arabian blackspot threadfin)
  • Polydactylus multiradiatus (Günther, 1860) (Australian threadfin)
  • Polydactylus nigripinnis Munro, 1964 (Blackfin threadfin)
  • Polydactylus octonemus (Girard, 1858) (Atlantic threadfin)
  • Polydactylus oligodon (Günther, 1860) (Littlescale threadfin)
  • Polydactylus opercularis Seale & Bean, 1907 (Yellow bobo)
  • Polydactylus persicus Motomura & Iwatsuki, 2001 (Persian blackspot threadfin)
  • Polydactylus plebeius (Broussonet, 1782) (Striped threadfin)
  • Polydactylus quadrifilis (Cuvier, 1829) (Giant African threadfin)
  • Polydactylus sexfilis (Valenciennes, 1831) (Sixfinger threadfin)
  • Polydactylus sextarius (Bloch & Schneider, 1801) (Blackspot threadfin)
  • Polydactylus siamensis Motomura, Iwatsuki & Yoshino, 2001 (Largemouth striped threadfin)
  • Polydactylus virginicus (Linnaeus, 1758) (Barbu)

References
  1. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Polydactylus". Catalog of Fishes. California Academy of Sciences. Retrieved 15 April 2020.
  2. http://www.fao.org/fishery/species/2266/en
  3. Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Polydactylus in FishBase. May 2017 version.
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