1) Blennioid 2) Blennioid fish 3) Catfish 4) Fish 5) Wolf fish 1) Lancetfish 2) Seacats 
any of nine species of large, long-bodied blennies of the family Anarhichadidae (order Perciformes), found in northern Atlantic and Pacific waters. ... [1 related articles]
Waters:Northern Atlantic and Pacific Oceans Description (in water): Most of these long, gray-blue or greenish fish weigh under ten pounds, but 30- and 40-lb. specimens have been caught. This is a ferocious-looking fish with long, sharp front teeth and a set of back teeth that's built for crushing tough-shelled prey like clams, crabs, and sea urchins. Description (in market): The lean, pearly white flesh has a firm texture and a mild, sweet flavor. The s kin is edible. ...
[n] - large ferocious northern deep-sea food fishes with strong teeth and no pelvic fins