This is the eleventh issue in the FAO series of worldwide annotated and illustrated catalogues of major groups of organisms that enter marine fisheries. The present volume includes 8 sea turtle species belonging to 2 families and 6 genera. It comprises an introductory section with general remarks on habitat and fisheries of the families, a glossary of technical terms used, an illustrated key to genera, and detailed accounts on all species. Species accounts include drawings, scientific and vernacular names, information on habitat, biology and fisheries, and a distribution map. Lists of nominal species in the families, a table of species by major marine fishing areas and colour plates follow the species accounts. The work is fully indexed and there is ample reference to pertinent literature.