Oversized upper lobe of caudal fin, elongate body, adults with hump. Slightly sub-terminal mouth, barbels present at margins. Hooked pharyngeal teeth, tiny inner-tooth row. Coloration: silver, fading with age, dusky olive gray back. Breeding adults: caudal, anal, dorsal, and paired fins have red-orange tinge. Breeding males: darker than normal, white tubercles on head and bases of fins. Fin rays: dorsal 9-10, pectoral 16-19, pelvic 8-9, anal 7-9. Lateral line scales: 57-64.