Appearance
''Cancer irroratus'' has nine marginal teeth on the front edge of the carapace beside each eye, and reaches a carapace width of 5.25 inches. These crabs are similar in color to, and overlap in size with, the Jonah crab, ''Cancer borealis''.The two species can indeed be distinguished by the purplish-brown spots on the carapace of ''C. irroratus'' , and by the smooth edges to the teeth on the edge of the carapace.
Distribution
This crab species occurs on the eastern coast of North America, from Iceland to South Carolina. Rock crabs live over a large depth range, from well above the low tide line to as deep as 2,600 feet.References:
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