What shape is the mouth of a rock crab?

The mouth of a rock crab is typically shaped like a small, rounded opening, often resembling a beak or a pair of pincers. This structure is adapted for grasping and crushing their food, primarily consisting of mollusks and other hard-shelled organisms. The mouthparts include specialized appendages that help in manipulating and processing their prey. Overall, their mouth is well-suited for their carnivorous feeding habits.