The titis, or titi monkeys, are the New World monkeys of the genus Callicebus. They are the only extant members of the Callicebinae
subfamily, which also contains the extinct genera Xenothrix, Antillothrix, Paralouatta, Carlocebus, Homunculus, Lagonimico
and possibly also Tremacebus. Titis live in South America, from Colombia to Brazil, Peru and north Paraguay.
Uakari is the common name for the New World monkeys of the genus Cacajao. The common name is believed to come from the indigenous
term for "Dutchmen"; their red faces apparently reminded the locals of sun-burned Europeans. Cacajao is also believed to be
an indigenous name, of unknown meaning now, as the tribe and language are both now extinct. The uakaris are unusual among
New World monkeys in that the tail length (15-18 cm) is substantially less than their head and body length (40-45 cm).
The White-faced Saki (Pithecia pithecia), also known as the Guianan Saki and the Golden-faced Saki, is a species of saki monkey,
a type of New World monkey, found in Brazil, French Guiana, Guyana, Suriname, and Venezuela. This species lives in the understory
and lower canopy of the forest, feeding mostly on fruits, but also eating nuts, seeds, and insects. There are two recognized
subspecies of this monkey: Pithecia pithecia pithecia Pithecia pithecia chrysocephala
The bearded sakis are five species of New World monkeys, classified in the genus Chiropotes. They live in the eastern and
central Amazon in South America, ranging through southern Venezuela, Guyana, Suriname, French Guiana and northern and central
Brazil. The five species are entirely allopatric, their distributions being separated by major rivers.
The Red-backed Bearded Saki, Chiropotes chiropotes, is a species of bearded saki, a type of New World monkey, from South America.
It is found in Brazil and Venezuela.