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howler monkeys Alouatta
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black howler monkey Alouatta caraya
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mantled howler monkey Alouatta palliata
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red howler monkey Alouatta seniculus
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night monkeys Aotus
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night monkeys Aotus
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lemurine night monkey Aotus lemurinus
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Ma's night monkey Aotus nancymaae
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northern night monkey Aotus trivirgatus
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northern night monkey Aotus trivirgatus
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spider monkeys Ateles
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Chamek spider monkey Ateles chamek
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Central American spider monkey Ateles geoffroyi
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Central American spider monkey Ateles geoffroyi
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Central American spider monkey Ateles geoffroyi
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