The fishes of this family are characterized by an oblong body, large mouth, brushlike or bristlelike teeth, sometimes with canines; one or two dorsal fins, the first always composed of spiny rays; the anal fin, always with three spines; scales adherent and rough (ctenoid); preopercle usually serrate; opercle with flat points or spines; cheeks and opercles always scaly; premaxillary protractile; dorsal and ventral outlines do not always correspond; caudal fin not deeply forked; its peduncle stout. THE WHITE-BASS (_Roccus chrysops_) _Roccus chrysops._ The White-bass. Body oblong, deep, and compressed; head 3-1/2; depth 2-1\2; eye 5; D. IX-I, 14; A. III, 12; scales 10-60-15; mouth moderate, maxillary reaching middle of pupil; a patch of teeth at base of tongue, and a patch on each side; preopercle serrate; subopercle with a deep notch; lower jaw somewhat projecting; dorsal fins separate; gill-rakers long and slender, _x_ + 14. _Morone interrupta._ The Yellow-bass. Body oblong, ovate, the back arched; head 3; depth 2-2/3; eye 4-1/2; D. IX-I, 12; A. III, 9; scales 7-50-11; dorsal fins slightly joined; jaws subequal; no teeth on base of tongue; gill-rakers moderate, _x_ + 13 to 16; preorbital and suprascapula serrate. The white-bass was first described by Rafinesque in 1820 from the falls of the Ohio River, near Louisville, Kentucky. He named it _chrysops_, or "gold eye," owing to the golden hue of the iris. It is known also as white lake-bass and fresh-water striped-bass. It is abundant in Lake Erie, Lake Michigan, and upper Mississippi River, especially in Lake Pepin, and in Lake Winnebago, Wisconsin. It was formerly not uncommon in the Ohio River, but is now rare. Its body is compressed and rather deep, with the back arched; its head is rather small, but the mouth is large, with the lower jaw protruding; the eye is large; teeth brushlike, without canines. The color is silvery white, greenish above, golden below, with six or more narrow dusky lines along the body, most conspicuous above the lateral line; those below broken, or not continuous. The white-bass is found in water of moderate depth, preferring those that are clear and cool, as it does not resort to weedy situations. It is essentially a lake fish, except in spring, when it undergoes a semi-migration, entering the tributaries of lakes in large schools. It spawns usually in May. It feeds on small fishes, crawfish, insects, and their larvæ, etc. Its usual size is a pound or a little less, but occasionally it grows to three pounds. It is a food-fish of much excellence, its flesh firm, white, flaky, and of good flavor.