High Quality Content by WIKIPEDIA articles! USS Crevalle (SS/AGSS-291), a Balao-class submarine, was a ship of the United States Navy named for the crevalle, the yellow mackerel, a food fish, found on both coasts of tropical America, and in the Atlantic as far north as Cape Cod. "Crevalle" is pronounced "cre-VAL-ley," with the accent on the second syllable.