The body is slightly higher, flat on the side and oval; The highest part of the body is located near the sixth spine of dorsal fin. The eyes are very big, and most of the pupils are below the midline of the body. Kiss short. The mouth crack is large and almost vertical; Mandibular protrusion, mandible, hoe and palate all have teeth. The posterior and lower edges of the anterior branchial bone are serrated with a long and backward spine. The head and body are covered with rough and solid comb scales that are not easy to fall off; The lateral line is complete, and the number of calibration holes in the lateral line is 5 1-67. The dorsal fin is single, with no deep defect, hard spines with X spines and soft strips11-13; The gluteal fin is opposite to the dorsal fin, with hard spines and soft strips12-14; The posterior end of dorsal fin is sharp, and the posterior end of gluteal fin is round; Short pectoral fin; The ventral fin is of medium length and shorter than the head; The caudal fin is meniscus-shaped, and the upper and lower leaves are filiform. The body is even pink or silvery white with pink luster; Each fin is pink; The ventral fin is densely covered with black spots, and there are 1-2 large black spots on the membrane connected with the abdomen.