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 520 figures and 7 color plates. Hershkovitz opens the study with a brief history and a definition, characterization, and comparison of primates as a taxonomic unit. Basing his work on nearly all known genera of living primates, the author deals with New World monkeys from comparative anatomical and evolutionary points of view. He examines display characters, pelage, the evolution of color patterns, primate locomotion, cranial and dental morphology, and the central nervous system. The final and most extensive part of the volume is devoted to the taxonomy and biology of the family Callitrichidae, comprising marmosets and tamarins, and the family Callimiconidae, represented by the callimico alone. Hershkovitz concludes with an exhaustive bibliography of more than 2,500 published works and a gazetteer of essential geographic data.

A comprehensive account of the origins, evolution, and behavior of South and Central American primates New World Monkeys brings to life the beauty of evolution and biodiversity in action among South and Central American primates, who are now at risk. These tree-dwelling rainforest inhabitants display an unparalleled variety in size, shape, hands, feet, tails, brains, locomotion, feeding, social systems, forms of communication, and mating strategies. Primatologist Alfred Rosenberger, one of the foremost experts on these mammals, explains their fascinating adaptations and how they came about. New World Monkeys provides a dramatic picture of the sixteen living genera of New World monkeys and a fossil record that shows that their ancestors have lived in the same ecological niches for up to 20 million years—only to now find themselves imperiled by the extinction crisis. Rosenberger also challenges the argument that these primates originally came to South America from Africa by floating across the Atlantic on a raft of vegetation some 45 million years ago. He explains that they are more likely to have crossed via a land bridge that once connected Western Europe and Canada at a time when many tropical mammals transferred between the northern continents. Based on the most current findings, New World Monkeys offers the first synthesis of decades of fieldwork and laboratory and museum research conducted by hundreds of scientists.

It is now well known that the concept of drifting continents became an estab lished theory during the 1960s. Not long after this "revolution in the earth sciences," researchers began applying the continental drift model to problems in historical biogeography. One such problem was the origin and dispersal of the New World monkeys, the Platyrrhini. Our interests in this subject began in the late 1960s on different conti nents quite independent of one another in the cities of Florence, Italy, and Berkeley, California. In Florence in 1968, A. B. Chiarelli, through stimulating discussions with R. von Koenigswald and B. de Boer, became intrigued with the possibility that a repositioning of the continents of Africa and South America in the early Cenozoic might alter previous traditional conceptions of a North American origin of the Platyrrhini. During the early 1970s this con cept was expanded and pursued by him through discussions with students while serving as visiting professor at the University of Toronto. By this time, publication of the Journal of Human Evolution was well underway, and Dr. Chiarelli as editor encouraged a dialogue emphasizing continental drift models of primate origins which culminated in a series of articles published in that journal during 1974-75. In early 1970, while attending the University of California at Berkeley, R. L. Ciochon was introduced to the concept of continental drift and plate tectonics and their concomitant applications to vertebrate evolution through talks with paleontologist W. A. Clemens and anthropologist S. L. Washburn.

Enth.: Most papers presented in a symposium on Nov. 19, 1988 at the annual meeting of the American Anthropological Association in Phoenix, Ariz.

This will be the first time a volume will be compiled focusing on South American monkeys as models to address and test critical issues in the study of nonhuman primates. In addition, the volume will serve an important compliment to the book on Mesoamerican primates recently published in the series under the DIPR book series. The book will be of interest to a broad range of scientists in various disciplines, ranging from primatology, to animal behavior, animal ecology, conservation biology, veterinary science, animal husbandry, anthropology, and natural resource management. Moreover, although the volume will highlight South American primates, chapters will not simply review particular taxa or topics. Rather the focus of each chapter is to examine the nature and range of primate responses to changes in their ecological and social environments, and to use data on South American monkeys to address critical theoretical questions in the study of primate behavior, ecology, and conservation. Thus, we anticipate that the volume will be widely read by a broad range of students and researchers interested in prosimians, New World monkeys, Old World monkeys, apes, humans, as well as animal behavior and tropical biology.

This collection of 29 papers grew out of a symposium entitled "Setting the Future Agenda for Neotropical Primates. " The symposium was held at the Department of Zoo logical Research, National Zoological Park, Washington D. C. , on February 26-27, 1994, and was sponsored by the Wenner-Gren Foundation for Anthropological Research, Smith sonian Institution, and Friends of the National Zoo. We put the symposium together with two objectives: to honor Warren G. Kinzey for his contributions to the growing field of platyrrhine studies and to provide researchers who work in the Neotropics with the oppor tunity to discuss recent developments, to identify areas of research that require additional study, and especially to help guide the next generation of researchers. The symposium provided the opportunity to recognize Warren as a mentor and col laborator to the contribution of the study of platyrrhines. Contributions to the book were expanded in order to provide a more comprehensive view of platyrrhine evolution and ecology, to emphasize the interdisciplinary nature of many of these studies, and to high light the central role that New World monkeys play in advancing primatology. If this vol ume were to require major revisions after just one more decade of research, that would be a fitting testament to Warren's enthusiasm and his drive to continually update the field with new ideas and methods. Tributes to Warren and a list of his publications have been published elsewhere (Norconk, 1994, 1996; Rosenberger 1994, 1995).

The Platyrrhine Fossil Record is a compendium of papers presented in a symposium of the 12th Congress of the International Congress of Primatology held in Brazil. One paper reviews evidence from fossil platyrrhines where the author concludes new dating and environmental data where these animals lived. Another paper describes the major changes pertaining to South American mammalian fauna during the Cenozoic Era, which he relates to global and regional geotectonic changes. Other papers review the paleontology and geology of the Miocene Pintura Formation and reassess the morphological transformations traditionally assumed as having been involved in platyrrhine phylogeny. One author also proposes that a prosimian-like ancestor is probably the predecessors of anthropoids; any similarities and primitive mammals can be evolutionary reversals associated with quadrupedal movements. The text also addresses the issue whether anthropoids, including platyrrhines, evolved from a prosimian ancestor or prosimians are just a group with mammalian postcranial skeletal structure. One author also reviews fossil remains found in the Caribbean, citing seven endemic taxa of platyrrhines in Cuba, Hispaniola, and Jamaica. Anthropologists, researchers involved in anatomical sciences, academicians, and administrators whose works are connected with museums of natural history or institutes of primate research will find this collection valuable.

Proceedings of the conference held in Bandar Seri Begawan, April 1993