1.Any South American monkey (platyrrhine) species in either of two families: marmosets (Callitrichidae) or South American monkeys other than marmosets (Cebidae), including capuchins and spider monkeys.

1.南洲类（阔鼻〔platyrrhine〕）的统称，括狨科和捲尾科（如和蜘蛛）。