''Polydactylus'' is a genus of threadfin that mainly are native to the Indian, Atlantic and Pacific Oceans, especially in coastal or

brackish Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuari ...

waters (such as

mangrove A mangrove is a shrub or tree that grows in coastal saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species. Mangroves are taxonomically diverse, as a result of convergent evolution in several ...

estuaries An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environme ...

). Some may even enter rivers and a single, ''P. macrophthalmus'', is a freshwater fish from rivers in

Borneo Borneo (; id, Kalimantan) is the List of islands by area, third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java Isl ...

. Most species do not surpass in standard length, but two can reach up to .

Species

There are currently 21 species in the genus: *'' 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 The king threadfin (''Polydactylus macrochir''), also known as the blind salmon, blink tassel-fish, burnett salmon, gold threadfin, king salmon, kingfish, Sheridan threadfin, triped tassel fish, or threadfin salmon, is a species of marine ray-fin ...

'' ( 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 Pierre Marie Auguste Broussonet (28 February 1761 – 17 January 1807) was a French naturalist who contributed primarily to botany. He was born in Montpellier, where he was educated, and travelled to Morocco, Spain, the Canary Islands, and Souther ...

, 1782) (Striped threadfin) *'' Polydactylus quadrifilis'' (

Cuvier Jean Léopold Nicolas Frédéric, Baron Cuvier (; 23 August 1769 – 13 May 1832), known as Georges Cuvier, was a French naturalist and zoologist, sometimes referred to as the "founding father of paleontology". Cuvier was a major figure in nat ...

, 1829) (Giant African threadfin) *''

Polydactylus sexfilis ''Polydactylus sexfilis'', the six-finger threadfin or yellowthread threadfin, is a species of marine ray-finned fish, a threadfin from the family Polynemidae which is found in the Indian and Pacific Oceans. Description ''Polydactylus sexfilis'' ...

'' (

Valenciennes Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France. It lies on the Scheldt () river. Although the city and region experienced a ...

, 1831) (Sixfinger threadfin) *''

Polydactylus sextarius ''Polydactylus sextarius'', the blackspot threadfin, is a species of marine ray-finned fish, a threadfin from the family Polynemidae which is native to the western Pacific and eastern Indian Oceans. Distribution ''Polydactylus sextarius'' is ...

'' ( Bloch &

Schneider Schneider may refer to: Hospital * Schneider Children's Medical Center of Israel People * Schneider (surname) Companies and organizations * G. Schneider & Sohn, a Bavarian brewery company * Schneider Rundfunkwerke AG, the former owner of th ...

, 1801) (Blackspot threadfin) *''

Polydactylus siamensis ''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). Some may even enter rivers and a single, ''P. macrophthalmus'', ...

'' Motomura, Iwatsuki & Yoshino, 2001 (Largemouth striped threadfin) *'' Polydactylus virginicus'' (

Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, t ...

, 1758) (Barbu)

References

{{Taxonbar, from=Q9300878 Polynemidae