page_title: Threadfin
section_title: Genera and species
hierarchical_section_title: Threadfin / Genera and species
caption_attribution_description: English: Filimanus heptadactyla. It has been extracted from File:Fishes of India. Atlas. Plate XLII.jpg. Deutsch: Filimanus heptadactyla. Das Bild wurde aus File:Fishes of India. Atlas. Plate XLII.jpg ausgeschnitten.
context_page_description: Threadfins are silvery grey perciform fish of the family Polynemidae. Found in tropical to subtropical waters throughout the world, the threadfin family contains eight genera and about 40 species. An unrelated species sometimes known by the name threadfin, Alectis indicus, is properly the Indian threadfish.
  Ranging in length from 11 cm in the dwarf threadfin to 2 m in fourfinger threadfin and giant African threadfin, threadfins are both important to commercial fisheries as a food fish, and popular among anglers. Their habit of forming large schools makes the threadfins a reliable and economic catch.
context_section_description: The species in eight genera are:
  Genus Eleutheronema
  Eleutheronema rhadinum (Jordan & Evermann, 1902) (East Asian fourfinger threadfin)
  Eleutheronema tetradactylum (Shaw, 1804) (Fourfinger threadfin)
  Eleutheronema tridactylum (Bleeker, 1849) (Threefinger threadfin)
  Genus Filimanus
  Filimanus heptadactyla (Cuvier, 1829) (Sevenfinger threadfin)
  Filimanus hexanema (Cuvier 1829) (Javanese threadfin)
  Filimanus perplexa Feltes 1991 (Splendid threadfin)
  Filimanus sealei (Jordan & Richardson, 1910) (Eightfinger threadfin)
  Filimanus similis Feltes 1991 (Indian sevenfinger threadfin)
  Filimanus xanthonema (Valenciennes, 1831) (Yellowthread threadfin)
  Genus Galeoides
  Galeoides decadactylus (Bloch, 1795) (Lesser African threadfin)
  Genus Leptomelanosoma
  Leptomelanosoma indicum (Shaw, 1804) (Indian threadfin)
  Genus Parapolynemus
  Parapolynemus verekeri (Saville-Kent, 1889) (Dwarf paradise fish)
  Genus Pentanemus
  Pentanemus quinquarius (Linnaeus, 1758) (Royal threadfin)
  Genus Polydactylus
  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)
  Genus Polynemus
  Polynemus aquilonaris Motomura, 2003 (Northern paradise fish)
  Polynemus bidentatus Motomura & Tsukawaki, 2006
  Polynemus dubius Bleeker, 1854 (Eastern paradise fish)
  Polynemus hornadayi Myers, 1936 (Hornaday's paradise fish)
  Polynemus kapuasensis Motomura & van Oijen, 2003 (Kapuas elegant paradise fish)
  Polynemus melanochir Valenciennes, 1831 (Blackhand paradise fish)
  Ploynemus multifilis Temminck & Schlegel, 1843 (Elegant paradise fish)
  Polynemus paradiseus Linnaeus, 1758 (Paradise threadfin)
caption: Sevenfinger threadfin (Filimanus heptadactyla)
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