1, different families and genera. Hairy crabs belong to freshwater arthropods of Eriocheir sinensis, and Portunus trituberculatus is a marine arthropod of Portunus trituberculatus.

2. Don't call it different. Hairy crabs can also be called river crabs, clear water crabs, river crabs and hairy crabs. The swimming crab can also be called sea crab, water crab, three-point crab and flying crab.

3. Different places of origin. Portunus is produced in Japan, Malay Archipelago, Korea, Guangxi, Zhejiang, Shandong Peninsula and other places. Hairy crabs are distributed in northern Asia, China and western Korea.

4. Different tastes

Portunus crab is relatively large, the meat is very thick and full, delicious and chewy. Hairy crabs are relatively small and don't contain that much meat. They mainly eat crab roe and crab paste, which are nutritious and have the characteristics of delicious and greasy.

5. Different varieties

Portunus is an animal belonging to the genus Portunus. It is named because its breastplate is shaped like a shuttle, and it is also called "Portunus trituberculatus" and "White Crab" because there are three protrusions in the center of its carapace. Hairy crab is an animal belonging to the genus Gastropoda, whose scientific name is Eriocheir sinensis, and its history is very long.