Richly illustrated with colour photographs & drawings, this guide covers most of the marine species likely to be encountered while diving or snorkelling in the Red Sea & Gulf of Aden. Fish, reptiles, mammals, invertebrates & plants are covered & indexed by both common & scientific names. Introductory sections deal with geological, oceanographical, ecological & conservation aspects of the reef environment, also hazards presented by marine life. Sixteen of the best dive sites are briefly described & indicated on a map of the region. Co-authored by Ewald Lieske & Robert F. Myers.