1, rays have a round or diamond-shaped body, with broad pectoral fins that extend from the end of the muzzle to the root of the slender tail; they have a flattened body and a long, slender tail, and some species of rays have one or more venomous spines with jagged edges growing from their tails.

2. The eyes and spouts of the skates grow on the top of the head, on the bottom side of the mouth and nose, and are formed by the cartilage of the rostrum, which protrudes from the skull. The body is monochromatic or patterned, and most species have hard spines or spiny structures on the spine, and some have a power-generating organ within the tail that is not very powerful. Rays are not aggressive and do not actively attack people, although many are non-swimmers.

3, manta rays (fúfèn) general body flat, wider than long, body disk diamond-shaped, one head wide and flat; head in front of the pectoral fins by the pectoral fins diverged from the two protruding cephalic fins, located on both sides of the head; tail as slender as a whip, with a small dorsal fins, some species of tail with a poisonous spine or more; mouth wide, anterior or inferior; teeth fine and numerous, nearly paving stone-like arrangement; upper and lower jaw with dental bands, or the upper jaw Toothless; nostrils situated on either side of the mouth just anterior to the mouth, and the spout opening at the corner of the mouth; the spout smaller, triangular, and situated behind the eyes on its head are two fleshy feet, which are its cephalic fins, which are turned over and protrude forward.

4, manta rays can generally jump 1.5 meters out of the water. During the breeding season, manta rays sometimes use both fins to slap the surface of the water and leap up to somersault in the air.