Superkingdom Eukaryota
Kingdom Animalia
Phylum Chordata
Subphylum Vertebrata
Superclass Pisces
Class Osteichthyes
Subclass Actinopterygii (ray-finned fishes)
Superorder Protacanthopterygii or Division Teleostei
Order Salmoniformes
Family Salmonidae

The genus containing trout and salmon species native to the North Pacific Ocean and the rivers emptying into it. The name 'Oncorhyncus' means 'hooked nose', a reference to the shape the fish's upper jaw metamorphoses into when it attains sexual maturity, as it returns to the site of its birth to spawn (and die).

Small, italic text designates a species' range.
(EA) = East Asia  (WNA) = Western North America

Some scientists group Salmo Penshiniensis and O. Mykiss into a different genus, Parasalmo.

Froese, R. and D. Pauly. Editors. 2001. FishBase.
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