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Fish Identification: Find Species

Class: Actinopterygii
Order: Perciformes
Family: Polynemidae Threadfins

Genus: Polydactylus

(See list of species below)



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21 species in
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21 species

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Scientific Name English Name Distribution Max. Length (cm) Year
Polydactylus approximans Blue bobo Eastern Pacific 36.8 TL 1839
Polydactylus bifurcus Slender fivefinger threadfin Eastern Indian Ocean 27 SL 2001
Polydactylus longipes Long-limb threadfin Western Central Pacific 26 SL 2001
Polydactylus luparensis Sarawak Giant Threadfin Asia 72 SL 2010
Polydactylus macrochir King threadfin Indo-West Pacific 170 FL 1867
Polydactylus macrophthalmus River threadfin Asia 52 TL 1858
Polydactylus malagasyensis African blackspot threadfin Western Indian Ocean 14.9 SL 2001
Polydactylus microstomus Smallmouth threadfin Eastern Indian Ocean and 25 TL 1851
Polydactylus mullani Arabian blackspot threadfin Western Indian Ocean 19 SL 1926
Polydactylus multiradiatus Australian threadfin Eastern Indian Ocean and 24.5 FL 1860
Polydactylus nigripinnis Blackfin threadfin Western Pacific 20 TL 1964
Polydactylus octonemus Atlantic threadfin Western Atlantic 33 TL 1858
Polydactylus oligodon Littlescale threadfin Western Atlantic 46 TL 1860
Polydactylus opercularis Yellow bobo Eastern Pacific 50 TL 1863
Polydactylus persicus Persian blackspot threadfin Western Indian Ocean 16 SL 2001
Polydactylus plebeius Striped threadfin Indo-Pacific 45 SL 1782
Polydactylus quadrifilis Giant African threadfin Eastern Atlantic 200 TL 1829
Polydactylus sexfilis Sixfinger threadfin Indo-Pacific 61 TL 1831
Polydactylus sextarius Blackspot threadfin Eastern Indian Ocean and 30 TL 1801
Polydactylus siamensis Largemouth striped threadfin Eastern Indian Ocean 27.4 SL 2001
Polydactylus virginicus Barbu Western Atlantic 33 TL 1758



Other identification tools in FishBase


Quick Identification
Identification keys
Identification by morphometrics
Identification by pictures:
          If you already know the Family, go to Search FishBase, select Family and click on 'Identification by pictures' to display all available pictures in FishBase for the family.

          If you already know the Country, go to
Search FishBase, select Country and click on 'Identification by pictures' to display all available pictures in FishBase for the country.

          If you already know the Ecosystem, go to
Search FishBase, select Ecosystem and click on 'Identification by pictures' to display all available pictures in FishBase for the ecosystem.
cfm script by eagbayani, 30.11.04, ,  php script by cmilitante, 05/11/2010 ,  last modified by cmilitante, 14/03/2013