found: Hershkovitz, P. Titis, New World monkeys of the genus Callicebus (Cebidae, Platyrrhini), c1990.
found: Groves, C. Primate taxonomy, 2001:p. 170 (Genus Callicebus Thomas, 1903, in Family Pitheciidae, Titis)
found: Shumaker, R.W. Primates in question, 2003:p. 18 (Titi monkeys (Callicebus spp.) in Family Pitheciidae)
found: Walker mamm. world:v. 1, p. 449 (Callicebus. Titi monkeys; Titis. Family Cebidae)
found: Mamm. species world:p. 258 (Callicebus. Subfamily Callicebinae, family Cebidae)
found: Corbet world list mamm. species, 1991:p. 96 (Callicebus; titis)
found: Web. 3(titi or teetee; titi also used as name for some trees and for 2 N.Z. birds)