Claw of a crustacean; it is actually a modified walking leg
cheliped One of a pair of limbs bearing large claws, or chelae, found in decapod crustacea.
any chela or, (claw)-bearing thoracopod; these usually refers to first pair(s) of pereiopods.
(in decapod crustaceans) either of the pair of appendages bearing a chela.