Chilean king crab, also known as Southern King Crab (meaning Southern King Crab), is slightly smaller in average size than Alaska King Crab (Northern King Crab). Compared with Alaskan king crab, Chilean king crab is shorter, and its barbs are sharper and thinner, which is easy to identify.

The leg of Alaskan King Crab can reach up to 1 meter. Because of its long legs, it is the only crab that can climb horizontally and walk vertically.