1, flower crab; Flower crab is the representative of sea crab, so it is named because of its bright colors. Eriocheir sinensis is a kind of salt water crab, which is most distributed in Hong Kong. The mature season of Eriocheir sinensis is in summer and autumn every year, which is the time of fat. Flower crabs are fatter in summer and autumn. The two sides of the crab cover are pointed, the edge of the big claw is deep red, there is not much meat in the claw, and its crab paste and crab roe are very few.

2. Portunus; This crab is shaped like a shuttle on a loom, and its output is extremely high, almost all along the coast. There are many kinds of swimming crabs, such as Portunus trituberculatus and Portunus trituberculatus.

3. King crab; Also known as stone crabs or rock crabs, that is, crustaceans of the family Lithopodiaceae, they are not real crabs. They are mainly distributed in cold seas, so they are named after their huge size and are known as the "king of crabs". Because of their huge size and delicious meat, many species are widely caught as food, among which the most common is Kamchatka stone crab. King crabs belong to deep-sea crabs, and the lowest water temperature that can survive is 1.4 degrees Celsius.

4. Blue crab; The growth environment of blue crab is relatively casual, both fresh water and salt water can grow, and it grows well, and it is the most famous in Guangdong. There are many diners in China, because it is the junction of fresh water production in Yu Xian, and it is divided into cream crab and meat crab. Cream crab is a female crab, because the cream yellow of female crab is very full. Meat crab is a male blue crab, because the navel tip and double claws of the male blue crab are very large and the crab meat is layered.