There are 56 species of cebids in 5 genera and 3 subfamilies. The most diverse group of cebids are the marmosets and tamarins (Callitrichinae), with 43 species. Callitrichinae includes Goeld's marmosets (Callimico), 21 species of marmosets (Callithrix), 4 species of lion tamarins (Leontopithecus), and 17 species of tamarins (Saguinus). There are 8 species of capuchins (Cebus) in the subfamily Cebinae and 5 species of squirrel monkeys (Saimiri) in the subfamily Saimiriinae.
- Gold, K. 2004. New World Monkeys I: Squirrel monkeys and capuchins. Pp. 101-113 in M Hutchins, D Thoney, M McDade, eds. Grzimek Animal Life Encyclopedia, Vol. 14. Detroit: Thomson-Gale.
- Nowak, R. 1991. Walker's Mammals of the World, Volume 1. Baltimore: The Johns Hopkins University Press.