HMS "Barracouta" was a Royal Navy . The next morning, Seymour proceeded down Macao Reach where he met the "Barracouta". Other marine predators include sharks and barracouta. The bay was also known to the English as Barracouta Harbour. Known as the Barracouta field, discovery of the Marlin field followed in March 1966. They were pursued by the 36-gun and the 18-gun , until "Barracouta" lost contact. Barracouta Key is an island in the Florida Keys in Monroe County, Florida, United States.