''Polynemus'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

threadfin 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 ...

s (family Polynemidae). They are native to South and Southeast Asia and, depending on the species, occur in freshwater, brackish, and/or marine environments. The family Polynemidae is characterized by the

pectoral fin Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as ...

that is divided into two sections; the upper one with rays that are attached whereas the lower rays are long and unattached ("threads"). In ''Polynemus'', the unattached rays number 14–15, in contrast to 3–7 in other genera.

Species

There are eight recognized species in this genus: * '' Polynemus aquilonaris'' Motomura, 2003 ( Northern paradise fish) * ''

Polynemus bidentatus ''Polynemus'' is a genus of threadfins (family Polynemidae). They are native to South and Southeast Asia and, depending on the species, occur in freshwater, brackish, and/or marine environments. The family Polynemidae is characterized by the pec ...

'' Motomura & Tsukawaki, 2006 * '' Polynemus dubius''

Bleeker Bleeker is a Dutch occupational surname. Bleeker is an old spelling of ''(linnen)bleker'' ("linen bleacher").Eastern paradise fish) * '' Polynemus hornadayi''

Myers Myers as a surname has several possible origins, e.g. Old French ("physician"), Old English ("mayor"), and Old Norse ("marsh"). People *Abram F. Myers (born 1889), chair of the Federal Trade Commission and later general counsel and board chai ...

, 1936 ( Hornaday's paradise fish) * ''

Polynemus kapuasensis ''Polynemus'' is a genus of threadfins (family Polynemidae). They are native to South and Southeast Asia and, depending on the species, occur in freshwater, brackish, and/or marine environments. The family Polynemidae is characterized by the pec ...

'' Motomura & van Oijen, 2003 ( Kapuas elegant paradise fish) * ''

Polynemus melanochir ''Polynemus'' is a genus of threadfins (family Polynemidae). They are native to South and Southeast Asia and, depending on the species, occur in freshwater, brackish, and/or marine environments. The family Polynemidae is characterized by the pec ...

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 s ...

, 1831 (

Blackhand paradise fish Black Hand or The Black Hand may refer to: Extortionists and underground groups * Black Hand (anarchism) (''La Mano Negra''), a presumed secret, anarchist organization based in the Andalusian region of Spain during the early 1880s * Black Hand (e ...

) ** ''Polynemus melanochir melanochir'' — Blackhand paradise fish ** ''Polynemus melanochir dulcis'' — Lake blackhand paradise fish * ''

Polynemus multifilis ''Polynemus multifilis'', the elegant paradise fish is a species of ray-finned fish, a threadfin from the Family (biology), family Polynemidae which is found in rivers in southeast Asia. Description ''Polynemus multifilis'' is a medium-sized spe ...

Temminck Coenraad Jacob Temminck (; 31 March 1778 – 30 January 1858) was a Dutch aristocrat, zoologist and museum director. Biography Coenraad Jacob Temminck was born on 31 March 1778 in Amsterdam in the Dutch Republic. From his father, Jacob Temminck ...

Schlegel Schlegel is a German occupational surname. Notable people with the surname include: * Anthony Schlegel (born 1981), former American football linebacker * August Wilhelm Schlegel (1767–1845), German poet, older brother of Friedrich * Brad Schlege ...

, 1843 (

Elegant paradise fish ''Polynemus multifilis'', the elegant paradise fish is a species of ray-finned fish, a threadfin from the family Polynemidae which is found in rivers in southeast Asia. Description ''Polynemus multifilis'' is a medium-sized species of threadfin ...

) * ''

Polynemus paradiseus The paradise threadfin (''Polynemus paradiseus'') is a species of catadromous ray-finned fish, a threadfin from the family Polynemidae which is found in south and southeast Asia in freshwater rivers where it is a valued food fish. Description T ...

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, the ...

1758 Events January–March * January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of Systema Naturae, 10th edition of ''Systema Naturae'', the sta ...

(

Paradise threadfin The paradise threadfin (''Polynemus paradiseus'') is a species of catadromous ray-finned fish, a threadfin from the family Polynemidae which is found in south and southeast Asia in freshwater rivers where it is a valued food fish. Description ...

)

References

Taxa named by Carl Linnaeus Polynemidae {{Perciformes-stub