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Carpus

The fifth segment of the limb (and 2nd major segment), the carpus connects the merus to the manus (claw). It can be seen as the “wrist” of the cheliped.

The carpus of the major cheliped, from the dorsal view of the crab. Figure modified from Crane (1975). image
The carpus of the major cheliped, from the dorsal view of the crab. Figure modified from Crane (1975).
The carpus of the major cheliped, from the vental view of the crab. Figure modified from Crane (1975). image
The carpus of the major cheliped, from the vental view of the crab. Figure modified from Crane (1975).