Callicebus

Callicebus is a genus of monkeys known as titi monkeys.

Callicebus
Atlantic titi (Callicebus personatus)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Suborder:	Haplorhini
Infraorder:	Simiiformes
Family:	Pitheciidae
Subfamily:	Callicebinae
Genus:	Callicebus Thomas, 1903
Type species
Simia personatus É. Geoffroy, 1812
Species
Callicebus barbarabrownae Callicebus coimbrai Callicebus melanochir Callicebus nigrifrons Callicebus personatus

Historically, titis were monogeneric, comprising only the genus Callicebus Thomas, 1903. Owing to the great diversity found across titi monkey species, a new genus-level taxonomy was recently proposed that recognises three genera within the subfamily Callicebinae; Cheracebus Byrne et al., 2016 for the species of the torquatus group (Widow titis); Plecturocebus Byrne et al., 2016 for the Amazonian and Chaco titis of the moloch and donacophilus groups; and Callicebus Thomas, 1903 sensu stricto, for species of the Atlantic Forest personatus group.^[1]

In 2014, a previously unknown orange Callicebus was spotted in the Peruvian Amazon; it has not been determined whether this constitutes a color variant or a new species.^[2]

Species

There are 5 species in this genus:

• Barbara Brown's titi monkey, Callicebus barbarabrownae
• Coimbra Filho's titi monkey, Callicebus coimbrai
• Coastal black-handed titi monkey, Callicebus melanochir
• Black-fronted titi monkey, Callicebus nigrifrons
• Atlantic titi monkey, Callicebus personatus

Callicebus species