Results 4 results found A pair of adult Spix's night monkeys, Aotus vociferans, living in a tree within the Pacaya Samiria Preserve, Peru. A pair of adult Spix's night monkeys, Aotus vociferans, living in a tree within the Pacaya Samiria Preserve, Peru. Adult Spix's night monkeys (Aotus vociferans), in Nauta Cano, Amazon River Basin, Iquitos, Peru, South America Adult Spix's night monkeys (Aotus vociferans), in Pahuachiro Creek, Amazon River Basin, Iquitos, Peru, South America
