This guide describes and illustrates the species and subspecies of the primates of South America, Central America and Mexico. This region has the largest number of primate taxa of any of the major regions in which primates occur, a total of 217 species and subspecies in 24 genera and five families. With an easy-to-use format that is very handy for the field, this new book enables visitors to see at a glance which species are present in the 21 countries of the Neotropical region that have wild primate populations, and it gives pointers that will help in their identification. The guide covers all the primate species and subspecies that occur naturally in the Neotropics and three African species that have been introduced and are now feral on some of the Caribbean islands, including Barbados, St Kitts and Nevis, St Lucia, Grenada, Saint-Martin/Sint Maarten and Anguilla.