The back of the head breastplate is very long, with five longitudinal verrucous protrusions on the surface and soft hair on the side; The forehead is narrow and the front is prominent, which is divided into 2 teeth; Small eye socket; There are granular teeth on the front side; There are 3 teeth on the trailing edge; There are 1 round teeth in the middle of the trailing edge, and four triangular sharp teeth on each side.

The shape of the pincers' feet is asymmetric, and the right knuckles are thicker, while the pincers' feet cling to the forehead when contracting. Feet are slender and smooth. Male abdomen is long, the third to fifth joints are healed, the joints are distinguishable, the sixth section is nearly rectangular, and the seventh section is sharply triangular. The female abdomen is wide and long, the sixth section is nearly rectangular and the seventh section is triangular.

Head breastplate is light brown; There are semi-circular reddish-brown patterns in the eye area; There are reddish-brown freckles on the adventitia of wrist joint and claw-foot long joint; Toes are brown. The breastplate of the male head is 62.0mm long and 83.0mm wide. The breastplate of the female head is 70.0 mm long and 93.0 mm wide.

Bread crab (UK) has a thick shell, less meat and less calf meat! Features are all women! The season is yellow! ? Treasure crab (Canada) meat crab, elegant meat! The calf is full! Thin shell! The three northeastern provinces, all public, are called Prince Crab, and those with legal mothers overseas are not allowed to enter! ? Bread crab is relatively cheaper than treasure crab!