Preheat your barbecue to medium (about 300 degrees F). Combine the oil and spices in a small bowl. Brush the mixture all over the crab. Set the crab directly on the grill and cook 4 to 5 minutes per side, or until cooked through. Plate the crab, garnish with lime slices and, if desired, serve with melted butter for dipping.
Note: Our seafood department staff will happily clean the crabs for you.