| 释义 |
- Species
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{{Taxobox
|image = Polydactylus plebeius, juvéniles.jpg
|image_caption = Young Polydactylus plebeius
|regnum=Animalia
|phylum=Chordata
|classis=Actinopterygii
|ordo=Perciformes
|familia=Polynemidae
|genus=Polydactylus
|genus_authority=
|subdivision_ranks=
|subdivision=
}}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).[1][2] Some may even enter rivers and a single, P. macrophthalmus, is a freshwater fish from rivers in Borneo.[2]Most species do not surpass {{convert|72|cm|ft|abbr=on|1}} in standard length, but two can reach up to {{convert|1.7-2|m|ft|abbr=on}}.[2] SpeciesThere are currently 21 species in the genus:[2] - 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)
References1. ^http://www.fao.org/fishery/species/2266/en
2. ^1 2 3 {{FishBase genus | genus = Polydactylus | month = May | year = 2017}}
{{Taxonbar|from=Q9300878}} 4 : Polynemidae|Fish of the Indian Ocean|Fish of the Atlantic Ocean|Fish of the Pacific Ocean |