Pictures of flatfish varieties are as follows:

1, groupers.

2, Dories.

3, Perch bream.

The details are as follows:

1, group head bream.

Common name: wuchang fish, grass bream, roach, bream, group head bream, group head bream, flat-breasted bream, flat block fish and so on.

The body of the bream is laterally flat and high, rhombic in shape, with a thicker back and a rounded shape from the back of the head to the beginning of the dorsal fin. The body is greenish-gray, with silver-gray sides, gray fins, and a silver-white belly. The head is small, the mouth is small, the back of the head is sharply bulging, and the slit is widely curved. It is distinguished from other bream species by the presence of cortical ventral ribs.

2. Dory.

Common names: bream, flat-breasted bream, flat-breasted bream, bream, tower bream, triangular bream, roach, fire bream (Hubei), farrowing (Northeast) and so on.

The triangular bream has a high, laterally compressed, diamond-shaped body. The upper and lower jaws of the pomfrets are as long as the lower jaw, the head is small, the mouth is small and oblique, the mouth is terminal, the surface of the upper and lower jaws are keratinized, and the ventral ribs run from the base of the ventral fin to the anus.

The hard spines of the dorsal fin are long and longer than the head length. Dorsum greenish brown, body sides grayish black, abdomen silvery white, all fins grayish white slightly darker. The swim bladder is 3-chambered, with the anterior chamber being the largest. It is a fast growing, large individual, and is named for its high top fin, long pointed head and long tail, which resembles a triangle when viewed from the side.

3, Changchun bream.

Common name: bream, long-bodied bream, grass bream, oil bream, bream, roach, hew head bream and so on.

Changchun bream like wuchang fish and non-wuchang fish. The body is laterally flat and diamond-shaped. Ventral ribs are obvious, from the pectoral fins to the anus dorsal fin spines are stout and smooth. The anal fin is 3.28-34. It lives in the middle and upper layers of the water body. Herbivorous. Lays drifting eggs in running water. Slow growing, common weight is about 1 pound.