1. Place of origin: Lingmen crab is mainly produced in Kyushu, Korea, Malay Archipelago, Red Sea of Japan and most of the coast of mainland China. While Zhoushan crab is produced in the waters around Zhoushan Islands, which is the main origin of pike crabs in China.
2. Appearance: The shell of Lingmen crab is in the shape of a pike, and there are three protrusions in the center, so it is also known as "pike crab with three warts". The whole body is covered with hard armor, and the back is dark green. The back of the Zhoushan crab is dark green, and its shape resembles a weaving shuttle, hence its name.
In summary, Lingmen crab and Zhoushan crab have obvious differences in origin and appearance.