Class Mammalia Linnaeus, 1758 - mammals Order Primates Linnaeus, 1758 - primates Family Cebidae Bonaparte, 1831 - New World monkeys Subfamily Atelinae Gray, 1825 1 Genus Ateles Geoffroy Saint-Hilaire, 1806 - spider monkeys 2 Genus Brachyteles Spix, 1823 - woolly spider monkey, muriqui 3 Genus Lagothrix Geoffroy, 1812 - woolly monkeys