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  1. Male external genitalia of non-prehensile tailed South American monkeys. Philip Hershkovitz. Part I, subfamiliy Pitheciinae, family Cebidae /
    By: Hershkovitz, Philip. - Field Museum of Natural History.
    Publication info: [Chicago, Ill.] :Field Museum of Natural History,c1993.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Anatomy  Cebidae  Generative organs, Male  Monkeys  Pitheciinae  Reproduction  
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  2. Titis, new world monkeys of the genus Callicebus (Cebidae, Platyrrhini) : a preliminary taxonomic review / Philip Hershkovitz.
    By: Hershkovitz, Philip. - Field Museum of Natural History.
    Publication info: Chicago, Ill. :Field Museum of Natural History,c1990.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Cebidae  Monkeys  South America  
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