GENUS PLACOPHARYNX COPE Big-jawed Sucker Placopharynx duquesnii (Le Sueur) This interesting sucker reaches a length of 2 to 2 1/2 feet and is not uncommon from Michigan to Tennessee, Arkansas and Georgia in the larger streams; it is probably most abundant in the French Broad River and in the Ozark region. Nothing peculiar in its habits is known, and it ranks with the species of redhorse as a food-fish. Head 4 in length; depth 3 4/5; D. 12 or 13; A. 9. Body oblong, moderately compressed, heavy at the shoulders; head large, broad, and flattish above, its upper surface somewhat uneven, eye small, behind the middle of the head; mouth large, the lower jaw oblique when the mouth is closed, the mouth, therefore, protractile forward as well as downward; lips very thick, coarsely plicate, the lower lip full and heavy, truncate behind; free edge of dorsal concave, the longest ray longer than base of fin, 1 1/5 in head; upper lobe of caudal narrower than the lower and somewhat longer. Colour, dark olive green, the sides brassy, not silvery; lower fins and caudal orange red.