This CD-ROM is a compilation of several FAO species identification publications dealing with Elasmobranches (Sharks, Rays and Chimaeras). It includes complete publications such as the Catalogue of sharks of the world, the Field guide of sharks and rays of the Mediterranean and Black Seas and the Field guide of sharks and rays of the Red Sea and Gulf of Aden. It also includes excerpts dealing with elasmobranches from several regional guides: Eastern Central Atlantic, Western Indian Ocean, Southern Ocean, Mediterranean and Black Seas, Eastern Central Pacific, Western Central Pacific and Western Central Atlantic.