A Preliminary Taxonomic Review of the South American Bearded Saki Monkeys Genus Chiropotes (Cebidae, Platyrrhini), with the Description of a New Subspecies Abstract Monkeys known as bearded sakis, genus Chi-ropotes, subfamily Pitheciinae, family Cebidae, are confined to the Guianan and Amazonian regions of South America. The two allopatric species rec-ognized are Chiropotes albinasus I. Geoffroy and Deville and Chiropotes satanas Hoffmannsegg, with subspecies C s. chiropotes Humboldt, C. s. utahicki (new), and C. s. satanas Hoffmannsegg. Each taxon is described and compared, and its geographic range is plotted and mapped. [Key words: bearded sakis, Chiropotes taxonomy, Chi-ropotes satanas utahicki, new subspecies.] I. Introduction This taxonomic review of the genus Chiropotes is the fourth of a series of preliminary reports on the taxonomy of living New World monkeys of the family Cebidae and the second of the subfam-ily Pitheciinae (Hershkovitz, 1979, 1983, 1984). Other reports will follow as new forms of cebids are discovered or classifications are revised. The taxa under consideration are the nonprehensile-tailed cebids of the genera Saimiri, Aotus, Calli-cebus, Pithecia, Chiropotes, and Cacajao of vol-ume 2 (in preparation) of Living New World Mon-keys (cf. Hershkovitz, 1977). Two species of bearded sakis are recognized in the present account of the genus Chiropotes. The first, C. satanas, is composed of three subspecies, one of which is described as new. The second, C albinasus, is monotypic. The karyotype of only one of the four taxa is known, and precise limits of the geographic boundaries of the species and subspecies are still to be determined (figs. 1-2). Some generic characters are given here for ori-entation, but detailed morphological descriptions, comparisons with other genera, systematic ar-rangements, and general biological information are reserved for the second volume of Living New World Monkeys. In any event, for those who can make use of the information now, this account includes complete synonymies and annotated bib-liographic references to virtually all original pub-lished accounts on bearded sakis. Material and Abbreviations A total of 2 1 2 specimens, nearly all skins with skulls and a few skeletons, were examined. The material is contained in the following North and South American institutions with their abbrevia-tions used in the text. Specimens in European mu-seums remain to be studied. AMNH = American Museum of Natural History FMNH = Field Museum of Natural History IEC = Instituto Evandro Chavez LACM = Los Angeles County Museum MNRJ = Museu Nacional, Rio de Janeiro MPEG = Museu Paraense Emilio Goeldi, Belem USNM = National Museum of Natural His-tory, Washington, D.C. USPMZ = Museu de Zoologia, Universidade de Sao Paulo II. Genus Chiropotes Lesson Synoptic Synonymy Pithecia, Illiger, 1811, Prodr. Syst. Mamm., p. 70— part, Cebus satanas Hoffmannsegg included. E. Geoffroy, HERSHKOVITZ: CHIROPOTES TAXONOMY
A preliminary taxonomic review of the South American bearded saki monkeys genus Chiropotes (Cebidae, Platyrrhini), with the description of a new subspecies
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