The largest of the three commercially caught king crab species, a large male may reach 24 lbs (11 kg). The long legs can easily span 5 ft (1.5 m) across. Unlike some of the other large king crab, the red king crab breeds annually and can be found throughout the Alaskan coast.
The king crab appears to only have eight legs, two of them ending in pinchers. Closer examination reveals that king crab actually have the usual number of 10 legs, although the two in the back are very small and usually tucked out of sight. These smaller legs are used when breeding.