This is the third of a three volumes field guide that covers the species of interest to fisheries of the major marine resources groups exploited in the Western Central Atlantic. The area of coverage includes FAO Fishing Area 31. The marine resources groups included in this volume are the Bony fishes part 2 Ophistognathidae to Molidae) sea turtles and marine mammals. The introductory chapter outlines the environmental, ecological and biogeographical factors influencing the marine biota and the ba sic components of the fisheries in the Western Central Atlantic. See also other volumes related to this series: