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Allen's swamp monkey
Allenopithecus nigroviridis
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hairy-eared dwarf lemur
Allocebus trichotis
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black howler monkey
Alouatta caraya
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mantled howler monkey
Alouatta palliata
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mantled howler monkey
Alouatta palliata
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mantled howler monkey
Alouatta palliata
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mantled howler monkey
Alouatta palliata
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red howler monkey
Alouatta seniculus
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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