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5. 5) Nakamura, I.: Billfishes of the World an Annotated and Illustrated Catalogue of Marlins, Sailfishes, Spearfishes and Swordfishes Known to Date, FAO Fisheries Synopsis, FAO Species Catalogue, Vol. 5, No. 125, 1985. http://www.youtube.com/watch?v=LEd3XvYgFVE&feature=related