Family Callitrichidae: marmosets and tamarins (42 species)
a family of New World monkeys, including marmosets and tamarins.
Species
Family Cebidae: capuchins and squirrel monkeys (14 species)
one of the five families of New World monkeys now recognised..
Family Aotidae: night monkeys (11 species)
also known as the owl monkeys or douroucoulis, the members of the genus Aotus of New World monkeys (monotypic in family Aotidae).
Family Pitheciidae: titis, sakis, and uakaris (41 species)
one of the five families of New World monkeys now recognised.
Family Atelidae: howler, spider, and woolly monkeys (24 species)
one of the five families of New World monkeys now recognised, generally larger monkeys
Family Cercopithecidae: Old World monkeys (135 species)
a family of primates, the only family in the superfamily Cercopithecoidea in the clade (or parvorder) of Catarrhini.
Family Hylobatidae: gibbons ("lesser apes") (17 species)
Gibbons occur in tropical and subtropical rainforests from eastern Bangladesh and northeast India to southern China and Indonesia (including the islands of Sumatra, Borneo, and Java).
Family Hominidae: great apes including humans (7 species)
also known as great apes or hominids, are a taxonomic family of primates that includes seven extant species in four genera: Pongo, the Bornean and Sumatran orangutan; Gorilla, the eastern and western gorilla; Pan, the common chimpanzee and bonobo; and Homo, the human.