centrolophus pompilus
Webster's Dictionary (GCIDE)
Blackfish \Black"fish\, n.
1.(Zool.) A small kind of whale, of the genus Globicephalus, of several species. The most common is Globicephalus melas. Also sometimes applied to other whales of larger size. [1913 Webster]
2.(Zool.) The tautog of New England (Tautoga). [1913 Webster]
3.(Zool.) The black sea bass (Centropristis atrarius) of the Atlantic coast. It is excellent food fish; -- locally called also black Harry. [1913 Webster]
4.(Zool.) A fish of southern Europe (Centrolophus pompilus) of the Mackerel family. [1913 Webster]
5.(Zool.) The female salmon in the spawning season. [1913 Webster]
Note: The name is locally applied to other fishes. [1913 Webster]