A name given to a fresh-water sunfish belonging to the genus Chænobryttus found in the eastern U.S.
1888. Goode, Amer. Fishes, 67. The Warmouth, Chænobryttus gulosus, is well-known throughout the South…. The Black Warmouth, Chænobryttus antistius, a species also called ‘Warmouth,’ ‘Big-mouth,’ [etc.] … abounds in the tributaries of the Upper Mississippi.
