Blackfishes

noun

1. The Atlantic salmon, Salmo salar, especially a female after spawning.
2. Any of various dark-coloured fish of the Old World, especially the rudderfish (Centrolophus niger).
3. A pilot whale, genus Globicephalus (occasionally also used for various other whales).
4. Either of two dark-coloured fish of the west Atlantic, the tautog of New England (Tautoga onitis) and the black sea bass (Centropristis striata).
5. Any of various dark-coloured fishes of Australasia, especially the luderick, Girella tricuspidata, and a freshwater fish, Gadopsis marmoratus.