A new and updated edition of this popular title. Visitors to South-East Asia are astonished at the profusion of marine life that exists in this biodiversity hot-spot. This concise, easy-to-follow field guide to 270 species of fish, corals and marine invertebrates is an essential companion for anyone interested in this fascinating underwater world, from the casual snorkeller to the most experienced diver. It includes stunning colour photographs of each species, as well as concise and informative text and at-a-glance symbols summarising habitat, diet and behaviour. A visual key to fish families at the start of the book aids the quick location and identification of species.