Differences in appearance, rays and devilfish despite their resemblance, rays have a caudal or dorsal fin, whereas devilfish only have a cephalic or muzzle fin. The size difference is that the devilfish is the largest of the rays, and the skate is nowhere near as large as the devilfish. The average ray is up to 2.5 meters long, while the largest devilfish will exceed 7 meters.

Differences in aggressiveness, the devil fish has a strong aggressiveness, easy to kill people, so called "devil fish", while the ray is much less aggressive.

Devilfish and rays are similar

Strays and rays belong to the subclass Platyhelminthes of the class Chondrichthyes, which are both cartilaginous fish. The skeleton of cartilaginous fishes is composed of cartilage, with partially ossified vertebrae and lack of a true skeleton. Both are close relatives of sharks, which is why sharks also belong to the subclass Plate Gill.

Stingrays and rays belong to a general order, a taxonomic order unit between suborders and orders, known as the skates. Virtually all species in the order except the rays can be called "rays," and the order skates includes about 600 species of fish.

At first glance, rays and skates look very much alike. They both have flat bodies that look like kites, and swim in a wave-like oscillation with huge winged pectoral fins. But there are extreme cases, such as the guitar-shaped ray, the guitar ray, which swims forward by wagging its tail from side to side, just like sharks.

Strays and rays have gill slits on the ventral surface of the head, while sharks have gill slits on the sides of the head. Stingrays and rays are benthic fish and can generally be found on the bottom of the ocean. They often submerge their bodies in the sand underwater to hide from predators and wait for an opportunity to catch approaching prey.