The white-cheeked spider monkey (Ateles marginatus ) is a species of spider monkey, a type of New World monkey, endemic to Brazil. It moves around the forest canopy in small family groups of two to four, part of larger groups of a few dozen animals....
The Guianan squirrel monkey (Saimiri sciureus) is a species of squirrel monkey from South America. This species formerly applied to Humboldt's squirrel monkey and Collins' squirrel monkey, but genetic research in 2009 and 2015 revealed that these...
The bare-eared squirrel monkey (Saimiri ustus ) is a squirrel monkey endemic to Brazil and possibly eastern Bolivia.
The Purús red howler (Alouatta puruensis ) is a species of howler monkey native to Brazil, Peru and north of Bolivia.
Collins' squirrel monkey (Saimiri collinsii ) is a species of squirrel monkey from Brazil. It had been considered a subspecies of the common squirrel monkey (S. sciureus ) until a genetic study by Jessica Lynch Alfaro et al. elevated it to species...
Spix's red-handed howler (Alouatta discolor ) is a species of Howler monkey native to the southeastern Amazon in Brazil. It is threatened by deforestation and hunting.
The Alta Floresta titi (Plecturocebus grovesi ) is a species of titi, a type of New World monkey, endemic to Brazil. It was described from the municipality of Alta Floresta in the state of Mato Grosso.It is a member of the Eastern Amazonian clade of...
The Juruá red howler (Alouatta juara ) is a species of howler monkey, native to Peru and Brazil.
Vieira's titi monkey (Plecturocebus vieirai ) is a species of titi, a type of New World monkey, from central-northern Brazil.
