The Collaborative International Dictionary
coalfish
coalfish
Cobia \Co"bi*a\, n. (Zo["o]l.) An oceanic fish of large size ( Elacate canada); the crabeater; -- called also bonito, cubbyyew, coalfish, and sergeant fish.
Wiktionary
coalfish
n. any of several blackish fish, especially ''Pollachius virens'', a pollack, and (taxlink Anoplopoma fimbria species noshow=1), sablefish.