In this long-awaited work, Philip Hershkovitz provides the most thorough and comprehensive treatise ever published on New World monkeys. The volume gives a detailed account of the origin, evolution, dispersal, and behavior of platyrrhines and a systematic arrangement of all known forms, living and extinct. During an eleven-year period, Hershkovitz examined more than 3,100 museum-preserved specimens and relevant primate fossils and observed hundreds of animals in captivity and thousands in the wild state. He presents his results in an elegant and encyclopedic text, lavishly illustrated with...