Osteoglossum
Encyclopedia
Osteoglossum is a genus
of fish
in the family
Osteoglossidae. The genus contains two species: the silver arowana
(O. bicirrhosum) and the black arowana
(O. ferreirai). They reach almost 1 metres (3.3 ft) in length and are restricted to freshwater habitats in tropical South America
.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of fish
Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...
in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Osteoglossidae. The genus contains two species: the silver arowana
Silver arowana
The silver arowana, Osteoglossum bicirrhosum, sometimes spelled arawana, is a freshwater bony fish of the family Osteoglossidae, commonly kept in aquaria...
(O. bicirrhosum) and the black arowana
Black arowana
The black arowana, Osteoglossum ferreirai, is a freshwater bony fish of the family Osteoglossidae, commonly kept in aquaria.-Description:...
(O. ferreirai). They reach almost 1 metres (3.3 ft) in length and are restricted to freshwater habitats in tropical South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...
.