September 2023
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The owl monkeys, genus Aotus, are among the most widely distributed of all platyrrhine genera. The 13 currently recognized taxa are found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Panama, Paraguay, Peru, and Venezuela. They range from lowland tropical moist and dry forests to over 3000 m.a.sl. in the cloud forests of the Andes. Owl monkeys appear to be sufficiently flexible to persist in anthropogenically altered habitats and fragmented forest patches. Here we gathered 1,703 owl monkey localities from a wide range of published and unpublished sources, making the most comprehensive database to date. These records were used to map the distributions of all owl monkey taxa based on our current understanding of the genus. Our knowledge is still limited in many areas where records are lacking, and we caution that all species IDs and maps be treated as tentative until the wide-ranging employment of genetic testing is available.