The Chinese name is "Cut spine cooked crab", which belongs to the phylum Arthropoda, class Mollusca, order Decapoda, family Crabaidae, and genus Spiny cooked crab in the animal kingdom. It is a marine organism. The head and chest armor of a mature crab with a cut spine is horizontally elliptical in shape, with clear zoning. The anterior edge is ridge shaped and divided into four leaves. The first leaf is fused with the outer dorsal fossa angle, while the last two leaves are sharp and form a dragon bone shape. The claws are symmetrical, with ridges on the dorsal edges of the long, palmar, and phalanges, and large granules covering the outer surface of the wrist and palmar segments. The knuckles of the claws are black, the back of the body is orange red, and the soft fur is earthy yellow.