A revised edition of the much-acclaimed field guide to the reef fishes of the Sea of Cortez. It features not only excellent color plates and photographs, but also a very good introduction to the ecology and biogeography of the Sea of Cortez. With photographs in color and black-and-white, maps, tables, and line drawings. Essential for divers and snorkelers. A new preface addresses conservation in the Sea of Cortez.  (BJA28, $29.95)