Colby's Casa Blanca Raghead Permit Crab- The Casa Blanca Raghead crab is a staple crab pattern fished on the flats all over the world. Especially popular in the Yucatan and Belize, but is used from the Bahamas to Christmas Island and back to Mexico. This is a must-have crab for every fly box chasing bonefish and permit. Use it in the flats for any species swimming around for a great mixed bag.