This guide, illustrated with more than 1,500 underwater photographs, presents nearly 1,200 species of fish encountered in scuba diving in the Indian Ocean and the Red Sea, between the surface and 60 m depth. Designed to facilitate the recognition of fish in their natural environment, this guide provides information on the morphology, biology and ecology of species and allows the reader to discover this extraordinary biodiversity which characterizes the ichthyological fauna of this region. Reference book for enthusiasts of the underwater world, and more particularly for divers, it will also interest a wide audience, curious about nature and its riches.