Finally, a comprehensive fish identification guide covering the fish-rich reefs of the Pacific. 2,500 underwater photographs of 2,000 species from four of the best marine life authors/photographers in the business. Their collaboration makes it possible for underwater naturalists to identify fishes from Thailand to Tahiti with a single, compact, easy-to-use, no-nonsense reference. 108 fish families are presented in one of 20 Identification groups based on a familys' related visual or behavioral characteristics, such as LargeOval/Colorul or Sand/Burrow Dwellers. Likewise, every effort has been made to group similar appearing species together.