Appearance characteristics:
The side is long and flat, and the abdomen is round. The head is short, the kiss is blunt, the mouth is in the terminal position, slightly inclined upward, the lips are thick and the eyes are small. The scales are large and slightly rectangular, and axillary scales extend backward on both sides of the base of the ventral fin. The lateral line is complete, the ventral fin slightly bends downward, and rises to the center of the caudal stalk after passing through the gluteal fin. During the breeding season, wedding dresses appear on the male body, and many pearl stars appear on the head, snout and gluteal fins. The fin of the gluteal fin 1-4 branch is particularly long, and the whole body is bright wedding color. When living, the body color is bright, the back is dark gray, the abdomen is silvery white, and there are 12- 13 vertical black stripes on the body side, and there are many irregular pink spots between the stripes. The ventral fin is reddish, and there are many black spots on the pectoral fin. The dorsal fin and caudal fin are gray, and the trailing edge of caudal fin is black.