Metacarcinus gracilis

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Graceful rock crab:
Graceful rock crab (Metacarcinus gracilis): The graceful rock crab is a common species found primarily on soft bottoms, especially where Eelgrass (Zostera marina) occurs. This species is often mistaken for small specimens of the the related Dungeness Crab (Metacarcinus magister). The graceful rock crab does not have the sharp, toothed ridge as seen the Dungeness Crab (Metacarcinus magister). Also, in the M. magister, the posterior-most carapace spine is also the widest part of the carapace. In M. gracilis there is a tiny spine behind the spine forming the widest point of the carapace (see photo with inset).

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