Chionoecetes tanneri

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Grooved Tanner crab:
Grooved Tanner crab (Chionoecetes tanneri): One of the 'grooved tanner crabs' like the closely related Triangle Tanner crab (Chionoecetes angulatus), this species is also found in deep water most often below 100 meters. The grooved tanner crab can be distinguished from C. angulatus by having a narrow groove on the center posterior portion of the carapace and having two large spines at the posero-lateral margin of the carapace/

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