An easy-to-use field guide based on morphological characteristics of the fin (i.e. fin color, distinct markings, fin shape) to be used by wildlife inspectors, customs personnel, researchers and fishers to provisionally identify detached, dried, unprocessed dorsal and pectoral fins from Large Coastal Sharks (LCS) and Pelagic Sharks that are common in the U.S. Atlantic Ocean, including the Gulf of Mexico