A very slender minnow with moderately large eyes and a small, slightly oblique mouth. Barbels absent. Front of dorsal fin base slightly closer to tip of snout than to base of tail fin. Tail fin with a large and prominent roundish black spot at base. Midside with a narrow dusky stripe that extends forward onto snout and chin. Snout blunt and rounded, projecting slightly beyond upper lip. Lateral line developed only on about 8 or 10 scales toward head.
Back pale olive-yellow, the scales prominently dark-edged. Sides silvery with a narrow dusky stripe. Belly silvery-white. Apart from the prominent black spot at base of tail fin, the fins otherwise plain or dusted with small dark specks.
Breeding males have considerable blackish pigment in the fins, and the body, head and fins are suffused with pink or red. Small tubercles are present on the head and upper surfaces of pectoral fins.