The Chinese mitten crab is a kind of economic crab, also known as river crab, hair crab, clear water crab, hairy crab. It is a time-honored delicacy in China. Its chelipeds are used for feeding and resisting the enemy, and the inner and outer edges of the palm are densely covered with downy hairs, which gives the mitten crab its name. Omnivores, fish, shrimp, snails, mussels, worms, earthworms, insects and their larvae can be used as animal bait for hairy crabs.