genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of
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.
Eastern paradise fish
Eastern may refer to:
Transportation
*China Eastern Airlines, a current Chinese airline based in Shanghai
*Eastern Air, former name of Zambia Skyways
*Eastern Air Lines, a defunct American airline that operated from 1926 to 1991
*Eastern Air Li ...
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 ...
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 (
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 ...
)
** ''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 Polynemidae which is found in rivers in southeast Asia.
Description
''Polynemus multifilis'' is a medium-sized species of thread ...
''
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 Temmin ...
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 ...
''
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
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'', the starting point of modern zoological ...