The Chinese mitten crab is an important economic crab species along the coast of China, with the scientific name "Eriocheir sinensis".Some places call it "“Qiuling”".Due to its spindle-shaped carapace, it is also known as "“sauce crab”".The shell has three prominent knobs in the middle, hence another name "“three-ridged crab”"..Because of the spindle shape of the head and thorax, it gets its name.Due to the three raised bumps on the shell, it is also called "“three-ridge crab”".The male has a pointed and smooth abdomen, long claws, with a greenish shell surface;while the female's abdomen is round with hair, the shell surface is reddish-brown or spotted.The meat of the Chinese mitten crab is fatty and delicious, flavorful, having high nutritional value and economic value, suitable for sea water fattening, making it a type of sea crab.The female belly of the sand crab is round with fine hair, and its shell surface is ochre in color, possibly with spots.Sand crabs have plump meat that tastes delicious and are highly nutritious and valuable. They are suitable for sea water temporary fattening, making them a type of sea crab.
