# List of platyrrhines

Platyrrhini is a parvorder of primates. Members of this parvorder are called platyrrhines, or New World monkeys, and include marmosets, tamarins, and capuchin, squirrel, night, titi, saki, howler, spider, and woolly monkeys. Platyrrhini is one of three clades that form the suborder Haplorrhini, itself one of two suborders in the order Primates. They are found in forests and savannas from South America to Mexico. They range in size from the western pygmy marmoset, at 12 cm (5 in) plus a 17 cm (7 in) tail, to some species of howler monkey in the genus Alouatta, at 92 cm (36 in) plus a 92 cm (36 in) tail. Platyrrhines primarily eat fruit, leaves, and insects. Most platyrrhines do not have population estimates, but the ones that do range from 250 mature individuals to 10,000. Twenty-one species are categorized as endangered, and a further fourteen species are categorized as critically endangered.
The 163 extant species of Platyrrhini are divided into five families. Aotidae contains eleven night monkey species in a single genus. Atelidae contains twenty-three species divided between one genus in the howler monkey subfamily Alouattinae and three genera in the spider monkey and wooly monkey subfamily Atelinae. Callitrichidae contains 53 species of tamarins and marmosets in seven genera. Cebidae contains eighteen species divided between two genera in the capuchin subfamily Cebinae and one genus in the squirrel monkey subfamily Saimiriinae. Pitheciidae contains 57 species divided between three genera in the titi monkey subfamily Callicebinae and three genera in the uakari and saki monkey subfamily Pitheciinae. Dozens of extinct prehistoric platyrrhine species have been discovered, though due to ongoing research and discoveries the exact number and categorization is not fixed.

## Conventions

Conservation status codes listed follow the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Range maps are provided wherever possible; if a range map is not available, a description of the platyrrhine's range is provided. Ranges are based on the IUCN Red List for that species unless otherwise noted.

## Classification

The parvorder Platyrrhini consists of five extant families: Aotidae, Atelidae, Callitrichidae, Cebidae, and Pitheciidae. Aotidae contains eleven species in one genus. Atelidae is divided into two subfamilies: Alouattinae, containing twelve species in one genus, and Atelinae, containing eleven species in three genera. Callitrichidae contains 53 species in seven genera. Cebidae is divided into two subfamilies: Cebinae, containing eleven species in two genera, and Saimiriinae, containing one genus of seven species. Pitheciidae is divided into two subfamilies: Callicebinae, containing 32 species in three genera, and Pitheciinae, containing 25 species in three genera.
Family Aotidae
* Genus Aotus (night monkeys): eleven species
Family Atelidae
* Subfamily Alouattinae
** Genus Alouatta (howler monkeys): twelve species
* Subfamily Atelinae
** Genus Ateles (spider monkeys): seven species
** Genus Brachyteles (muriquis): two species
** Genus Lagothrix (wooly monkeys): two species
Family Callitrichidae
* Genus Callimico (Goeldi's marmoset): one species
* Genus Callithrix (Atlantic Forest marmosets): six species
* Genus Cebuella (pygmy marmosets): two species
* Genus Leontocebus (saddle-back tamarins): seven species
* Genus Leontopithecus (lion tamarins): four species
* Genus Mico (marmosets): sixteen species
* Genus Saguinus (tamarins): seventeen species
Family Cebidae
* Subfamily Cebinae
** Genus Cebus (gracile capuchin monkeys): four species
** Genus Sapajus (robust capuchin monkeys): seven species
* Subfamily Saimiriinae
** Genus Saimiri (squirrel monkeys): seven species
Family Pitheciidae
* Subfamily Callicebinae
** Genus Callicebus (Atlantic Forest titi monkeys): five species
** Genus Cheracebus (widow titi monkeys): five species
** Genus Plecturocebus (Amazonian and Chaco titi monkeys): twenty-two species
* Subfamily Pitheciinae
** Genus Cacajao (uakaris): seven species
** Genus Chiropotes (bearded saki monkeys): five species
** Genus Pithecia (saki monkeys): thirteen species
Platyrrhini
Pitheciidae
Callicebinae
Plecturocebus
Callicebus
Cheracebus
Pitheciinae
Cacajao
Chiropotes
Pithecia
Atelidae
Alouattinae
Alouatta
Atelinae
Ateles
Brachyteles
Lagothrix
Cebidae
Cebinae
Cebus
Sapajus
Saimirinae
Saimiri
Callitrichidae
Cebuella
Mico
Callithrix
Callimico
Leontopithecus
Leontocebus
Saguinus
Aotidae
Aotus :

## Platyrrhines

The following classification is based on the taxonomy described by the reference work Mammal Species of the World (2005), with augmentation by generally accepted proposals made since using molecular phylogenetic analysis, as supported by both the IUCN and the American Society of Mammalogists.

### Family Aotidae

Genus Aotus – Illiger, 1811 – eleven species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Azara's night monkey | A. azarae (Humboldt, 1811) Three subspecies A. a. azarae A. a. boliviensis (Bolivian night monkey) A. a. infulatus (Feline night monkey) | Central and northeastern South America | Size: 24–37 cm (9–15 in) long, plus 31–40 cm (12–16 in) tail Habitat: Forest and savanna Diet: Fruit, as well as nectar, flowers, insects, and other small animals | LC  Unknown |
| Black-headed night monkey | A. nigriceps (Dollman, 1909) | Central South America | Size: 24–37 cm (9–15 in) long, plus 30–39 cm (12–15 in) tail Habitat: Forest Diet: Fruit, insects, fruits, leaves, and flowers | LC  Unknown |
| Brumback's night monkey | A. brumbacki Hershkovitz, 1983 | Northwestern South America | Size: 24–37 cm (9–15 in) long, plus 31–40 cm (12–16 in) tail Habitat: Forest and savanna Diet: Fruit, as well as nectar, flowers, insects, and other small animals | VU  Unknown |
| Gray-bellied night monkey | A. lemurinus I. Geoffroy, 1846 | Northwestern South America | Size: 30–32 cm (12–13 in) long, plus 34–35 cm (13–14 in) tail Habitat: Forest Diet: Fruit, nectar, leaves, and insects, as well as small birds and mammals | VU  Unknown |
| Gray-handed night monkey | A. griseimembra Elliot, 1912 | Northwestern South America | Size: 24–37 cm (9–15 in) long, plus 31–40 cm (12–16 in) tail Habitat: Forest Diet: Fruit, as well as nectar, flowers, insects, and other small animals | VU  Unknown |
| Hernández-Camacho's night monkey | A. jorgehernandezi Defler & Bueno, 2007 | Western Colombia | Size: 24–37 cm (9–15 in) long, plus 31–40 cm (12–16 in) tail Habitat: Forest Diet: Fruit, as well as nectar, flowers, insects, and other small animals | DD  Unknown |
| Nancy Ma's night monkey | A. nancymaae Hershkovitz, 1983 | Northwestern South America | Size: About 32 cm (13 in) long, plus about 32 cm (13 in) tail Habitat: Forest Diet: Fruit, nectar, and insects | VU  Unknown |
| Panamanian night monkey | A. zonalis Goldman, 1914 | Northwestern South America and Central America | Size: 30–33 cm (12–13 in) long, plus about 30 cm (12 in) tail Habitat: Forest Diet: Fruit, nectar, flowers, insects, and other small animals | NT  Unknown |
| Peruvian night monkey | A. miconax Thomas, 1927 | Northwestern South America | Size: 24–37 cm (9–15 in) long, plus 31–40 cm (12–16 in) tail Habitat: Forest Diet: Fruit, flowers, leaves, buds, and insects | EN  Unknown |
| Spix's night monkey | A. vociferans (Spix, 1823) | Northwestern South America | Size: 24–37 cm (9–15 in) long, plus 32–40 cm (13–16 in) tail Habitat: Forest Diet: Fruit, nectar, flowers, insects, and other small animals | LC  Unknown |
| Three-striped night monkey | A. trivirgatus (Humboldt, 1811) | Northern South America | Size: 24–47 cm (9–19 in) long, plus 22–42 cm (9–17 in) tail Habitat: Forest Diet: Fruit, insects, nectar and leaves, as well as lizards, frogs and eggs | LC  Unknown |

### Family Atelidae
#### Subfamily Alouattinae

Genus Alouatta – Lacépède, 1799 – twelve species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Amazon black howler | A. nigerrima Lönnberg, 1941 | Central South America | Size: 56–91 cm (22–36 in) long, plus 56–91 cm (22–36 in) tail Habitat: Forest and savanna Diet: Leaves, fruit, buds, flowers, seeds, moss, stems, and termite nests | LC  Unknown |
| Black howler | A. caraya (Humboldt, 1812) | Central South America | Size: 51–67 cm (20–26 in) long, plus 51–67 cm (20–26 in) tail Habitat: Forest and savanna Diet: Leaves, as well as fruit, buds and flowers | NT  Unknown |
| Bolivian red howler | A. sara Elliot, 1910 | Central South America | Size: 54–71 cm (21–28 in) long, plus 52–60 cm (20–24 in) tail Habitat: Forest and savanna Diet: Leaves, fruit, buds, flowers, seeds, moss, stems, and termite nests | NT  Unknown |
| Brown howler | A. guariba (Humboldt, 1812) Two subspecies A. g. clamitans (Southern brown howler) A. g. guariba (Northern brown howler) | East South America | Size: 55–92 cm (22–36 in) long, plus 58–92 cm (23–36 in) tail Habitat: Forest Diet: Leaves, flowers, and fruit | VU  Unknown |
| Colombian red howler | A. seniculus (Linnaeus, 1766) Two subspecies A. s. juara (Juruá red howler) A. s. seniculus (Colombian red howler) | Northwestern South America | Size: 48–63 cm (19–25 in) long, plus 52–80 cm (20–31 in) tail Habitat: Forest and savanna Diet: Leaves, fruit, buds, flowers, seeds, moss, stems, and termite nests | LC  Unknown |
| Guyanan red howler | A. macconnelli Linnaeus, 1766 | Northern South America | Size: 55–92 cm (22–36 in) long, plus 58–92 cm (23–36 in) tail Habitat: Forest and savanna Diet: Leaves, fruit, buds, flowers, seeds, moss, stems, and termite nests | LC  Unknown |
| Mantled howler | A. palliata (Gray, 1849) Five subspecies A. p. aequatorialis (Ecuadorian mantled howler) A. p. coibensis (Coiba Island howler) A. p. mexicana (Mexican howler) A. p. palliata (Golden-mantled howler) A. p. trabeata (Azuero howler) | Northwestern South America, Central America, and southern Mexico | Size: 38–58 cm (15–23 in) long, plus 52–67 cm (20–26 in) tail Habitat: Forest Diet: Leaves, fruit, and flowers | VU  Unknown |
| Maranhão red-handed howler | A. ululata Elliot, 1912 | Northeastern Brazil | Size: 55–92 cm (22–36 in) long, plus 58–92 cm (23–36 in) tail Habitat: Forest and savanna Diet: Fruit and leaves | EN  250–2,500 |
| Red-handed howler | A. belzebul (Linnaeus, 1766) | Northeastern and eastern Brazil | Size: 40–65 cm (16–26 in) long, plus 58–10 cm (23–4 in) tail Habitat: Forest Diet: Leaves, bark, and twigs, as well as flowers | VU  Unknown |
| Spix's red-handed howler | A. discolor (Spix, 1823) | Central Brazil | Size: 55–92 cm (22–36 in) long, plus 58–92 cm (23–36 in) tail Habitat: Forest Diet: Fruit and leaves, as well as flowers, bark, decaying wood, termite nests, and twigs | VU  Unknown |
| Ursine howler | A. arctoidea A. Cabrera, 1940 | Northern South America | Size: 55–92 cm (22–36 in) long, plus 58–92 cm (23–36 in) tail Habitat: Forest and savanna Diet: Leaves and fruit, as well as buds, flowers, seeds, moss, stems, and termite nests | LC  Unknown |
| Yucatán black howler | A. pigra Lawrence, 1933 | Yucatán Peninsula in Mexico and Central America | Size: 52–71 cm (20–28 in) long, plus 50–69 cm (20–27 in) tail Habitat: Forest Diet: Fruit, leaves, buds, and flowers | EN  Unknown |

#### Subfamily Atelinae

Genus Ateles – Geoffroy, 1806 – seven species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Black-headed spider monkey | A. fusciceps Gray, 1866 Two subspecies A. f. fusciceps (Brown-headed spider monkey) A. f. rufiventris (Colombian spider monkey) | Northwestern South America (in red) | Size: 40–55 cm (16–22 in) long, plus 70–85 cm (28–33 in) tail Habitat: Forest Diet: Fruit, leaves, nuts, seeds, and insects, as well as eggs | EN  Unknown |
| Brown spider monkey | A. hybridus I. Geoffroy, 1829 | Northwestern South America | Size: 45–50 cm (18–20 in) long, plus 74–81 cm (29–32 in) tail Habitat: Forest Diet: Fruit, as well as leaves, flowers, seeds, bark, honey, decaying wood, termites, and caterpillars | CR  Unknown |
| Geoffroy's spider monkey | A. geoffroyi Kuhl, 1820 Six subspecies A. g. azuerensis (Azuero spider monkey) A. g. frontatus (Black-foreheaded spider monkey) A. g. geoffroyi (Nicaraguan spider monkey) A. g. grisescens (Hooded spider monkey) A. g. ornatus (Ornate spider monkey) A. g. vellerosus (Mexican spider monkey) | Central America and southern Mexico (in blue) | Size: 30–63 cm (12–25 in) long, plus 63–84 cm (25–33 in) tail Habitat: Forest Diet: Fruit, leaves, and flowers, as well as nuts, seeds, insects, arachnids, and eggs | EN  Unknown |
| Peruvian spider monkey | A. chamek (Humboldt, 1812) | Central South America | Size: 40–60 cm (16–24 in) long, plus 70–88 cm (28–35 in) tail Habitat: Forest Diet: Fruit, as well as flowers, insects, and leaves | EN  Unknown |
| Red-faced spider monkey | A. paniscus (Linnaeus, 1758) | Northern South America | Size: 38–63 cm (15–25 in) long, plus 50–89 cm (20–35 in) tail Habitat: Forest Diet: Fruit, as well as leaves, flowers, seeds, roots, and fungi | VU  Unknown |
| White-bellied spider monkey | A. belzebuth Geoffroy, 1806 | Northwestern South America | Size: 34–59 cm (13–23 in) long, plus 61–88 cm (24–35 in) tail Habitat: Forest Diet: Fruit, as well as leaves, flowers, seeds, roots, decaying wood, honey, and insects | EN  Unknown |
| White-cheeked spider monkey | A. marginatus Geoffroy, 1809 | North-central South America | Size: 38–63 cm (15–25 in) long, plus 50–89 cm (20–35 in) tail Habitat: Forest Diet: Fruit, as well as leaves, flowers, seeds, roots, decaying wood, honey, and insects | EN  Unknown |
Genus Brachyteles – Geoffroy, 1806 – two species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Northern muriqui | B. hypoxanthus (Kuhl, 1820) | Southeastern Brazil | Size: 46–50 cm (18–20 in) long, plus 72–81 cm (28–32 in) tail Habitat: Forest Diet: Leaves, fruit, vines, flowers, bark, nectar, and seeds | CR  1,000 |
| Southern muriqui | B. arachnoides (Geoffroy, 1806) | Southeastern Brazil | Size: 46–50 cm (18–20 in) long, plus 72–81 cm (28–32 in) tail Habitat: Forest Diet: Fruit, leaves, flowers, and seeds | CR  Unknown |
Genus Lagothrix – Geoffroy, 1812 – two species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Common woolly monkey | L. lagotricha (Humboldt, 1812) Five subspecies L. l. cana (Gray woolly monkey) L. l. lagothricha (Brown woolly monkey) L. l. lugens (Colombian woolly monkey) L. l. poeppigii (Silvery woolly monkey) L. l. tschudii (Peruvian woolly monkey) | Northwestern South America | Size: 55–69 cm (22–27 in) long, plus 60–72 cm (24–28 in) tail Habitat: Forest, savanna Diet: Fruit, as well as leaves, seeds, and insects | VU  Unknown |
| Yellow-tailed woolly monkey | L. flavicauda Humboldt, 1812 | Western South America | Size: 44–53 cm (17–21 in) long, plus 60–65 cm (24–26 in) tail Habitat: Forest Diet: Fruit, leaves, insects, moss, buds, and flowers | CR  1,000–10,000 |

### Family Callitrichidae

Genus Callimico – Miranda-Ribeiro, 1922 – one species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Goeldi's marmoset | C. goeldii Thomas, 1904 | Western South America | Size: 21–23 cm (8–9 in) long, plus 25–33 cm (10–13 in) tail Habitat: Forest Diet: Fruit, insects, and fungi, as well as lizards, frogs, and other small vertebrates | VU  Unknown |
Genus Callithrix – Erxleben, 1777 – six species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Black-tufted marmoset | C. penicillata (Geoffroy, 1812) | Eastern South America | Size: 22–28 cm (9–11 in) long, plus 44–56 cm (17–22 in) tail Habitat: Forest and savanna Diet: Tree sap, as well as fruit, insects, arthropods, molluscs, and small vertebrates | LC  Unknown |
| Buffy-headed marmoset | C. flaviceps (Thomas, 1903) | Eastern South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Plant gum, as well as fruit, seeds, nectar, and flowers | CR  2,000–2,500 |
| Buffy-tufted marmoset | C. aurita (Geoffroy, 1812) | Eastern South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Ants, termites, larvae, caterpillars, and large-winged insects | EN  10,000–11,000 |
| Common marmoset | C. jacchus (Linnaeus, 1758) | Eastern South America | Size: 12–15 cm (5–6 in) long, plus 29–35 cm (11–14 in) tail Habitat: Forest and savanna Diet: Tree sap, insects, spiders, fruit, flowers, and nectar, as well as small lizards, bird's eggs, nestlings, and frogs | LC  Unknown |
| White-headed marmoset | C. geoffroyi (Humboldt, 1812) | Eastern South America | Size: 18–23 cm (7–9 in) long, plus about 29 cm (11 in) tail Habitat: Forest and savanna Diet: Fruit, insects, and plant gums, as well as flowers, nectar, frogs, snails, lizards, and spiders | LC  Unknown |
| Wied's marmoset | C. kuhlii Coimbra-Filho, 1985 | Eastern South America | Size: 20–22 cm (8–9 in) long, plus 27–31 cm (11–12 in) tail Habitat: Forest Diet: Sap, fruit, flowers, nectar, seeds, insects, and spiders | VU  Unknown |
Genus Cebuella – Gray, 1866 – two species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Eastern pygmy marmoset | C. niveiventris Lönnberg, 1940 | Western South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Tree gum | VU  Unknown |
| Western pygmy marmoset | C. pygmaea (Spix, 1823) | Western South America | Size: 12–15 cm (5–6 in) long, plus 17–23 cm (7–9 in) tail Habitat: Forest Diet: Tree gum, sap, and resin, as well as insects, small lizards, fruit, flowers, and spiders | VU  Unknown |
Genus Leontocebus – Wagner, 1840 – seven species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Andean saddle-back tamarin | L. leucogenys (Gray, 1866) | Western South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit pulp, sap, nectar, invertebrates, and small vertebrates | LC  Unknown |
| Cruz Lima's saddle-back tamarin | L. cruzlimai (Hershkovitz, 1966) | Central South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit, sap, nectar, vegetation, spiders, small vertebrates, and eggs | LC  Unknown |
| Geoffroy's saddle-back tamarin | L. nigrifrons (I. Geoffroy, 1850) | Western South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit pulp, sap, nectar, invertebrates and small vertebrates | LC  Unknown |
| Illiger's saddle-back tamarin | L. illigeri (Pucheran, 1845) | Western South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit pulps, sap, nectar, invertebrates, and small vertebrates | NT  Unknown |
| Lesson's saddle-back tamarin | L. fuscus (Lesson, 1840) | Western South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit, nectar, gum, and small animals | LC  Unknown |
| Red-mantled saddle-back tamarin | L. lagonotus (Espada, 1870) | Western South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit pulp, sap, nectar, invertebrates, and small vertebrates | LC  Unknown |
| Weddell's saddle-back tamarin | L. weddelli (Deville, 1849) Three subspecies L. w. crandalli (Crandall's saddle-back tamarin) L. w. melanoleucus (White-mantled tamarin) L. w. weddelli | Western South America | Size: About 19 cm (7 in) long, plus about 30 cm (12 in) tail Habitat: Forest Diet: Fruit pulp, sap, nectar, invertebrates, and small vertebrates | LC  Unknown |
Genus Leontopithecus – Lesson, 1840 – four species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Black lion tamarin | L. chrysopygus (Mikan, 1823) | Southeastern South America | Size: 20–34 cm (8–13 in) long, plus 31–40 cm (12–16 in) tail Habitat: Forest Diet: Insects and fruit, as well as lizards, birds, other small vertebrates, and bird eggs | EN  1,600 |
| Golden lion tamarin | L. rosalia (Linnaeus, 1766) | Southeastern South America | Size: 20–37 cm (8–15 in) long, plus 31–40 cm (12–16 in) tail Habitat: Forest Diet: Spiders, snails, small lizards, eggs, small birds, fruit, and vegetables | EN  1,400 |
| Golden-headed lion tamarin | L. chrysomelas (Kuhl, 1820) | Eastern South America | Size: 20–34 cm (8–13 in) long, plus 31–40 cm (12–16 in) tail Habitat: Forest Diet: Insects and fruit, as well as lizards, birds, other small vertebrates, and bird eggs | EN  Unknown |
| Superagüi lion tamarin | L. caissara Lorini & Guerra, 1990 | Southeastern South America | Size: About 30 cm (12 in) long, plus about 43 cm (17 in) tail Habitat: Forest Diet: Fruit, flowers, gum, and nectar, as well as insects, small lizards, and snakes | EN  250 |
Genus Mico – Lesson, 1840 – sixteen species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Black-headed marmoset | M. nigriceps Ferrari & Lopes, 1992 | Central South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | NT  Unknown |
| Black-tailed marmoset | M. melanurus (Geoffroy, 1812) | Central South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Savanna and shrubland Diet: Insects, spiders, small vertebrates, eggs, fruit, and sap | NT  Unknown |
| Emilia's marmoset | M. emiliae (Thomas, 1920) | Central South America | Size: About 22 cm (9 in) long, plus about 34 cm (13 in) tail Habitat: Forest and savanna Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | LC  Unknown |
| Gold-and-white marmoset | M. chrysoleucos (Wagner, 1842) | Central South America | Size: 19–26 cm (7–10 in) long, plus 30–36 cm (12–14 in) tail Habitat: Forest Diet: Gum and sap, as well as seeds, fruit, nuts, insects, and small vertebrates | LC  Unknown |
| Hershkovitz's marmoset | M. intermedius Hershkovitz, 1977 | Central South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | LC  Unknown |
| Marca's marmoset | M. marcai Alperin, 1993 | Central South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | VU  Unknown |
| Maués marmoset | M. mauesi R. A. Mittermeier, Schwarz & Ayres, 1992 | Central South America | Size: 19–23 cm (7–9 in) long, plus 34–38 cm (13–15 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | LC  Unknown |
| Munduruku marmoset | M. munduruku Costa-Araújo, Farias, Hrbek, 2019 | Central South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Insects, spiders, small vertebrates, eggs, fruit, and sap | VU  Unknown |
| Rio Acarí marmoset | M. acariensis (M. van Roosmalen, T. van Roosmalen, R. A. Mittermeier, & Rylands, 2000) | Central South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | LC  Unknown |
| Rondon's marmoset | M. rondoni Ferrari, Sena, Schneider, & Silva Jr., 2010 | Central South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | VU  Unknown |
| Roosmalens' dwarf marmoset | M. humilis (M. Roosmalen, 1998) | Central South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Insects, fruit and gum | LC  Unknown |
| Santarem marmoset | M. humeralifer (Geoffroy, 1812) | Central South America | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | NT  Unknown |
| Satéré marmoset | M. saterei Noronha & Silva Jr., 1998 | Central South America | Size: 19–23 cm (7–9 in) long, plus 34–36 cm (13–14 in) tail Habitat: Forest Diet: Insects, spiders, small vertebrates, eggs, fruit, and sap | LC  Unknown |
| Schneider's marmoset | M. schneideri Costa-Araújo et al., 2021 | Central South America (in dark gray) | Size: 18–30 cm (7–12 in) long, plus 17–41 cm (7–16 in) tail Habitat: Forest Diet: Insects, spiders, small vertebrates, eggs, fruit, and sap | EN  Unknown |
| Silvery marmoset | M. argentatus (Linnaeus, 1766) | Central South America | Size: 20–23 cm (8–9 in) long, plus 26–33 cm (10–13 in) tail Habitat: Forest and savanna Diet: Sap and gum, as well as fruit, insects, and leaves | LC  Unknown |
| White marmoset | M. leucippe (Thomas, 1922) | Central South America | Size: 20–24 cm (8–9 in) long, plus 26–37 cm (10–15 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | LC  Unknown |
Genus Saguinus – Hoffmannsegg, 1807 – seventeen species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Brown-mantled tamarin | S. fuscicollis Spix, 1823 Four subspecies S. f. avilapiresi (Avila Pires' saddle-back tamarin) S. f. fuscicollis (Spix's saddle-back tamarin) S. f. mura (Mura's saddleback tamarin) S. f. primitivus (Lako's saddleback tamarin) | West-central South America | Size: 21–23 cm (8–9 in) long, plus about 43 cm (17 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | LC  Unknown |
| Black-mantled tamarin | S. nigricollis Spix, 1823 Three subspecies S. n. graellsi (Graells's tamarin) S. n. hernandezi (Hernandez-Camacho's black-mantle tamarin) S. n. nigricollis (Spix's black mantle tamarin) | West-central South America | Size: 22–23 cm (9 in) long, plus 35–37 cm (14–15 in) tail Habitat: Forest Diet: Insects, fruit, seeds, flowers, nectar, and gum | LC  Unknown |
| Black tamarin | S. niger (Geoffroy, 1803) | Eastern South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | VU  Unknown |
| Cotton-top tamarin | S. oedipus (Linnaeus, 1758) | Northwestern South America | Size: 20–25 cm (8–10 in) long, plus 33–40 cm (13–16 in) tail Habitat: Forest Diet: Insects, fruit, and gum | CR  2,000 |
| Eastern black-handed tamarin | S. ursula Hoffmannsegg, 1807 | Eastern South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | VU  Unknown |
| Emperor tamarin | S. imperator (Goeldi, 1907) Two subspecies S. i. imperator (Black-chinned emperor tamarin) S. i. subgrisescens (Bearded emperor tamarin) | Western South America | Size: 23–27 cm (9–11 in) long, plus 35–43 cm (14–17 in) tail Habitat: Forest Diet: Fruit, insects, and tree sap, as well as lizards, tree frogs, and bird eggs | LC  Unknown |
| Geoffroy's tamarin | S. geoffroyi (Pucheran, 1845) | Northwestern South America and southeastern Central America | Size: 20–29 cm (8–11 in) long, plus 31–42 cm (12–17 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | NT  Unknown |
| Golden-handed tamarin | S. midas (Linnaeus, 1758) | Northeastern South America | Size: 20–28 cm (8–11 in) long, plus 31–44 cm (12–17 in) tail Habitat: Forest and savanna Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | LC  Unknown |
| Golden-mantled tamarin | S. tripartitus H. Milne-Edwards, 1878 | Western South America | Size: 21–24 cm (8–9 in) long, plus 31–35 cm (12–14 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | NT  Unknown |
| Martins's tamarin | S. martinsi (Thomas, 1912) Two subspecies S. m. martinsi (Martin's bare-face tamarin) S. m. ochraceus (Ochraceous bare-faced tamarin) | Central South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | NT  Unknown |
| Mottle-faced tamarin | S. inustus (Schwartz, 1951) | West-central South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit, insects, and spiders | LC  Unknown |
| Moustached tamarin | S. mystax (Spix, 1823) Two subspecies S. m. mystax (Spix's moustached tamarin) S. m. pluto (White-rumped moustached tamarin) | West-central South America | Size: 24–25 cm (9–10 in) long, plus about 38 cm (15 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, insects, sap, gum, and soil | LC  Unknown |
| Pied tamarin | S. bicolor Spix, 1823 | Central South America | Size: 20–29 cm (8–11 in) long, plus 33–42 cm (13–17 in) tail Habitat: Forest Diet: Fruit, flowers, and sap, as well as gum and insects | CR  Unknown |
| Red-capped tamarin | S. pileatus I. Geoffroy & Deville, 1848 | Central South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit pulp, sap, nectar, invertebrates, and small vertebrates | LC  Unknown |
| White-footed tamarin | S. leucopus (Günther, 1877) | Northwestern South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | VU  Unknown |
| White-lipped tamarin | S. labiatus (Humboldt, 1812) Three subspecies S. l. labiatus S. l. rufiventer S. l. thomasi (Thomas' moustached tamarin) | Central South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit, nectar, insects, and sap | LC  Unknown |
| White-mantled tamarin | S. melanoleucus Miranda-Ribeiro, 1912 | West-central South America | Size: 17–31 cm (7–12 in) long, plus 25–44 cm (10–17 in) tail Habitat: Forest Diet: Fruit, flowers, nectar, gum, sap, frogs, snails, lizards, spiders, and insects | LC  Unknown |

### Family Cebidae
#### Subfamily Cebinae

Genus Cebus – Erxleben, 1777 – four species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Colombian white-faced capuchin | C. capucinus (Linnaeus, 1758) Three subspecies C. c. capucinus C. c. curtus (Gorgona white-faced capuchin) C. c. imitator (Panamanian white-faced capuchin) | Northwestern South America and southeastern Central America | Size: 33–46 cm (13–18 in) long, plus about 55 cm (22 in) tail Habitat: Forest and savanna Diet: Fruit and nuts, as well as insects, other invertebrates, and small vertebrates including squirrels, tree rats, lizards, and birds | VU  Unknown |
| Kaapori capuchin | C. kaapori Queiroz, 1992 | Northeastern South America | Size: 30–57 cm (12–22 in) long, plus 30–56 cm (12–22 in) tail Habitat: Forest Diet: Fruit, insects, and seeds | CR  Unknown |
| Wedge-capped capuchin | C. olivaceus Schomburgk, 1848 | Northern South America | Size: 37–46 cm (15–18 in) long, plus 40–55 cm (16–22 in) tail Habitat: Forest Diet: Fruit, palm nuts, seeds, berries, small vertebrates, and invertebrates | LC  Unknown |
| Humboldt's white-fronted capuchin | C. albifrons Humboldt, 1812 Six subspecies C. a. aequatorialis (Ecuadorian capuchin) C. a. albifrons (White-fronted capuchin) C. a. cuscinus (Shock-headed capuchin) C. a. trinitatis (Trinidad white-fronted capuchin) C. a. unicolor (Spix's white-fronted capuchin) C. a. versicolor (Varied white-fronted capuchin) | Central South America | Size: About 37 cm (15 in) long, plus about 42 cm (17 in) tail Habitat: Forest and savanna Diet: Fruit, as well as insects, other small invertebrates, palm nuts, figs, and nectar | LC  Unknown |
Genus Sapajus – Kerr, 1792 – seven species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Black capuchin | S. nigritus Goldfuss, 1809 Two subspecies S. n. cucullatus S. n. nigritus | Southeastern South America | Size: 32–55 cm (13–22 in) long, plus 35–50 cm (14–20 in) tail Habitat: Forest Diet: Fruit, berries, seeds, leaves, and nuts, as well as young frogs, birds, insects, and eggs | NT  Unknown |
| Azaras's capuchin | S. cay (Illiger, 1815) | Central South America | Size: 30–57 cm (12–22 in) long, plus 30–56 cm (12–22 in) tail Habitat: Forest and savanna Diet: Fruit, seeds, arthropods, frogs, birds, primates, and small mammals, as well as stems and flower buds | VU  Unknown |
| Black-striped capuchin | S. libidinosus Spix, 1823 | Eastern South America | Size: 30–57 cm (12–22 in) long, plus 30–56 cm (12–22 in) tail Habitat: Forest and savanna Diet: Fruit, seeds, arthropods, frogs, birds, and small mammals, as well as stems, flowers and leaves | NT  Unknown |
| Blond capuchin | S. flavius Schreber, 1774 | Eastern South America | Size: 33–40 cm (13–16 in) long, plus 36–50 cm (14–20 in) tail Habitat: Forest Diet: Fruit, insects, palm nuts, and sugar cane | EN  500 |
| Crested capuchin | S. robustus Kuhl, 1820 | Eastern South America | Size: 30–57 cm (12–22 in) long, plus 30–56 cm (12–22 in) tail Habitat: Forest Diet: Fruit, seeds, arthropods, frogs, birds, and small mammals, as well as stems, flowers and leaves | EN  Unknown |
| Golden-bellied capuchin | S. xanthosternos Wied-Neuwied, 1826 | Eastern South America | Size: 35–49 cm (14–19 in) long, plus 37–49 cm (15–19 in) tail Habitat: Forest, savanna, and shrubland Diet: Fruit, seeds, nectar, pith, stems, nuts, berries, flowers, leaves, bird eggs, insects, frogs, small reptiles, birds, bats, other small mammals, oysters, and crabs | CR  2,500 |
| Tufted capuchin | S. apella (Linnaeus, 1758) Two subspecies C. a. apella C. a. margaritae (Margarita Island capuchin) | Northern South America | Size: 38–46 cm (15–18 in) long, plus 38–39 cm (15–15 in) tail Habitat: Forest and savanna Diet: Vegetation, seeds, pith, eggs, insects, reptiles, birds, and small mammals | LC  Unknown |

#### Subfamily Saimiriinae

Genus Saimiri – Voigt, 1831 – seven species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Bare-eared squirrel monkey | S. ustus (I. Geoffroy, 1843) | Central South America | Size: 26–36 cm (10–14 in) long, plus 35–43 cm (14–17 in) tail Habitat: Forest Diet: Fruit, insects, and spiders, as well as flowers, nectar, seeds, bird eggs, and small vertebrates | NT  Unknown |
| Black squirrel monkey | S. vanzolinii Ayres, 1985 | Central South America | Size: About 32 cm (13 in) long, plus 41 cm (16 in) tail Habitat: Forest Diet: Fruit and insects, as well as small vertebrates, flowers, seeds, leaves, and nectar | EN  Unknown |
| Black-capped squirrel monkey | S. boliviensis (I. Geoffroy & Blainville, 1834) Two subspecies S. b. boliviensis (Bolivian squirrel monkey) S. b. peruviensis (Peruvian squirrel monkey) | Western South America | Size: 27–32 cm (11–13 in) long, plus 38–42 cm (15–17 in) tail Habitat: Forest Diet: Insects and fruit, as well as berries, nuts, flowers, seeds, leaves, arachnids, small vertebrates, and eggs | LC  Unknown |
| Central American squirrel monkey | S. oerstedii Reinhardt, 1872 Two subspecies S. o. citrinellus (Grey-crowned Central American squirrel monkey) S. o. oerstedii (Black-crowned Central American squirrel monkey) | Southern Central America | Size: 22–30 cm (9–12 in) long, plus 37–47 cm (15–19 in) tail Habitat: Forest Diet: Fruit, berries, seeds, gums, leaves, buds, insects, arachnids, and small vertebrates | EN  Unknown |
| Collins' squirrel monkey | S. collinsi (Osgood, 1914) | Northern South America (in red) | Size: 26–30 cm (10–12 in) long, plus 38–39 cm (15–15 in) tail Habitat: Forest Diet: Fruit and insects | LC  Unknown |
| Guianan squirrel monkey | S. sciureus (Linnaeus, 1758) | Northern South America (in green) | Size: About 32 cm (13 in) long, plus 41 cm (16 in) tail Habitat: Forest Diet: Fruit and insects, as well as leaves and seeds | LC  Unknown |
| Humboldt's squirrel monkey | S. cassiquiarensis (Lesson, 1840) Three subspecies S. c. albigena S. c. cassiquiarensis S. c. macrodon | Northwestern South America (in yellow) | Size: 25–35 cm (10–14 in) long, plus about 38 cm (15 in) tail Habitat: Forest Diet: Arthropods, fruit, and flowers | LC  Unknown |

### Family Pitheciidae
#### Subfamily Callicebinae

Genus Callicebus – Thomas, 1903 – five species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Atlantic titi monkey | C. personatus (Geoffroy, 1812) | Eastern South America | Size: 31–42 cm (12–17 in) long, plus 41–56 cm (16–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects, and seeds | VU  Unknown |
| Barbara Brown's titi monkey | C. barbarabrownae (Hershkovitz, 1990) | Eastern South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Savanna and shrubland Diet: Fruit, as well as leaves, vegetation, insects, eggs, and small vertebrates and invertebrates | CR  100-250 |
| Black-fronted titi monkey | C. nigrifrons (Spix, 1823) | Eastern South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit, leaves, and flowers, as well as arthropods | NT  Unknown |
| Coastal black-handed titi monkey | C. melanochir (Wied-Neuwied, 1820) | Eastern South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit, seeds, and leaves | VU  Unknown |
| Coimbra Filho's titi monkey | C. coimbrai Kobayashi, 1999 | Eastern South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest and savanna Diet: Fruit, leaves, flowers, seeds, and insects, as well as birds | EN  250–2,500 |
Genus Cheracebus – Byrne et al., 2016 – five species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Black titi monkey | C. lugens (Humboldt, 1811) | Northern South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest and savanna Diet: Fruit, seeds, leaves, stems, flowers, insects, and spiders | LC  Unknown |
| Collared titi monkey | C. torquatus (Hoffmannsegg, 1807) | Central South America | Size: 23–36 cm (9–14 in) long, plus about 46 cm (18 in) tail Habitat: Forest Diet: Fruit and seeds, as well as leaves and insects | LC  Unknown |
| Colombian black-handed titi monkey | C. medemi (Hershkovitz, 1963) | Northwestern South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | VU  Unknown |
| Lucifer titi monkey | C. lucifer (Thomas, 1914) | Northwestern South America | Size: 30–45 cm (12–18 in) long, plus 39–50 cm (15–20 in) tail Habitat: Forest Diet: Fruit, as well as leaves, insects, and bird eggs | LC  Unknown |
| Red-headed titi monkey | C. regulus (Thomas, 1927) | Northwestern South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | LC  Unknown |
Genus Plecturocebus – Byrne et al., 2016 – 22 species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Ashy black titi monkey | P. cinerascens (Spix, 1823) | Central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | LC  Unknown |
| Baptista Lake titi monkey | P. baptista Lönnberg, 1939 | Central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | LC  Unknown |
| Brown titi monkey | P. brunneus (Wagner, 1842) | West-central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | VU  Unknown |
| Caquetá titi monkey | P. caquetensis Defler, Bueno, & García, 2010 | Northwestern South America | Size: 31–34 cm (12–13 in) long, plus 36–64 cm (14–25 in) tail Habitat: Forest Diet: Fruit, seeds, and leaves, as well as flowers, arthropods, and stems | CR  Unknown |
| Chestnut-bellied titi monkey | P. caligatus (Wagner, 1842) | Central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | LC  Unknown |
| Coppery titi monkey | P. cupreus (Spix, 1823) | Western South America | Size: 28–39 cm (11–15 in) long, plus about 7–13 cm (3–5 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | LC  Unknown |
| Hershkovitz's titi monkey | P. dubius (Hershkovitz, 1988) | Western South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | LC  Unknown |
| Hoffmanns's titi monkey | P. hoffmannsi (Thomas, 1908) | Central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | LC  Unknown |
| Madidi titi monkey | P. aureipalatii (Wallace, Gómez, A. M. Felton, & A. Felton, 2006) | Western South America | Size: 29–32 cm (11–13 in) long, plus 48–53 cm (19–21 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | LC  Unknown |
| Milton's titi monkey | P. miltoni Dalponte, Silva, & Silva Júnior, 2014 | Central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit, as well as leaves, vegetation, insects, eggs, and small vertebrates and invertebrates | DD  Unknown |
| Olalla brothers' titi monkey | P. olallae Lönnberg, 1939 | Western South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest and savanna Diet: Fruit and leaves | CR  Unknown |
| Ornate titi monkey | P. ornatus (Gray, 1866) | Northwestern South America | Size: 30–36 cm (12–14 in) long, plus 38–45 cm (15–18 in) tail Habitat: Forest Diet: Fruit, as well as insects, leaves, and flowers | VU  Unknown |
| Prince Bernhard's titi monkey | P. bernhardi (M. van Roosmalen, T. van Roosmalen, & R. A. Mittermeier, 2002) | Central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects and seeds | LC  Unknown |
| Red-bellied titi monkey | P. moloch (Hoffmannsegg, 1807) | Northeast-central South America | Size: 27–43 cm (11–17 in) long, plus 35–55 cm (14–22 in) tail Habitat: Forest Diet: Fruit, as well as leaves, insects, eggs, and small vertebrates | LC  Unknown |
| Rio Beni titi monkey | P. modestus (Lönnberg, 1939) | Western South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest and savanna Diet: Fruit, as well as flowers and invertebrates | EN  Unknown |
| Rio Mayo titi monkey | P. oenanthe (Thomas, 1924) | Western South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit and insects, as well as seeds, flowers, leaves, and shoots | CR  Unknown |
| Stephen Nash's titi monkey | P. stephennashi M. van Roosmalen, T. van Roosmalen, & R. A. Mittermeier, 2002) | Central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Unknown Diet: Fruit pulp, leaves, insects, and seeds | DD  Unknown |
| Toppin's titi monkey | P. toppini (Thomas, 1914) | Western South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit, as well as leaves and insects | LC  Unknown |
| Urubamba brown titi monkey | P. urubambensis (Vermeer & Tello-Alvarado, 2015) | Western South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit pulp, leaves, insects, and seeds | LC  Unknown |
| Vieira's titi monkey | P. vieirai Gualda-Barros, Nascimento, & Amaral, 2012 | Central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest Diet: Fruit, as well as leaves, vegetation, insects, eggs, and small vertebrates and invertebrates | CR  Unknown |
| White-coated titi monkey | P. pallescens (Thomas, 1907) | Central South America | Size: 23–46 cm (9–18 in) long, plus 26–56 cm (10–22 in) tail Habitat: Forest and savanna Diet: Fruit, flowers, and vines | LC  Unknown |
| White-eared titi monkey | P. donacophilus (d'Orbigny, 1836) | West-central South America | Size: About 32 cm (13 in) long, plus 48–51 cm (19–20 in) tail Habitat: Forest Diet: Fruit, as well as leaves, seeds, and insects | LC  Unknown |
| White-tailed titi monkey | P. discolor (I. Geoffroy & Deville, 1848) | Northwestern South America | Size: 29–45 cm (11–18 in) long, plus 35–64 cm (14–25 in) tail Habitat: Forest Diet: Fruit, seeds, and flowers | LC  Unknown |

#### Subfamily Pitheciinae

Genus Cacajao – Lesson, 1840 – seven species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Aracá uakari | C. ayresi Boubli et al., 2008 | North-central South America | Size: 30–57 cm (12–22 in) long, plus 12–21 cm (5–8 in) tail Habitat: Forest Diet: Fruit, nuts, flowers, leaves, and insects | LC  Unknown |
| Golden-backed uakari | C. melanocephalus (Humboldt, 1811) | Northern South America | Size: 36–49 cm (14–19 in) long, plus 18–25 cm (7–10 in) tail Habitat: Forest Diet: Fruit and seeds | LC  Unknown |
| Neblina uakari | C. hosomi Boubli et al., 2008 | Northern South America | Size: 43–49 cm (17–19 in) long, plus 36–45 cm (14–18 in) tail Habitat: Forest and savanna Diet: Seeds, as well as fruit pulp, leaves, and arthropods | VU  Unknown |
| Novae's bald-headed uakari | C. novaesi Hershkovitz, 1987 | Western South America | Size: 38–57 cm (15–22 in) long, plus 14–19 cm (6–7 in) tail Habitat: Forest Diet: Seeds, fruit, leaves, nectar, and insects | VU  Unknown |
| Red bald-headed uakari | C. rubicundus (I. Geoffroy & Deville, 1848) | Western South America | Size: 38–57 cm (15–22 in) long, plus 14–19 cm (6–7 in) tail Habitat: Forest Diet: Seeds, fruit, leaves, nectar, and insects | LC  Unknown |
| Ucayali bald-headed uakari | C. ucayalii Thomas, 1928 | Western South America | Size: 38–57 cm (15–22 in) long, plus 14–19 cm (6–7 in) tail Habitat: Forest Diet: Seeds, fruit, leaves, nectar, and insects | VU  Unknown |
| White bald-headed uakari | C. calvus (I. Geoffroy, 1847) | Western South America | Size: 38–57 cm (15–22 in) long, plus 14–19 cm (6–7 in) tail Habitat: Forest Diet: Seeds, fruit, leaves, nectar, and insects | LC  Unknown |
Genus Chiropotes – Lesson, 1840 – five species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Black bearded saki | C. satanas (Hoffmannsegg, 1807) | Northeastern South America | Size: 32–48 cm (13–19 in) long, plus 37–47 cm (15–19 in) tail Habitat: Forest Diet: Seeds, as well as fruit, flowers, leaf stalks, and arthropods | EN  Unknown |
| Reddish-brown bearded saki | C. sagulatus (Traill, 1821) | Northeastern South America | Size: 32–52 cm (13–20 in) long, plus 30–51 cm (12–20 in) tail Habitat: Forest Diet: Fruit and seeds, as well as flowers, stems, and arthropods | LC  Unknown |
| Red-backed bearded saki | C. chiropotes (Humboldt, 1811) | Northern South America | Size: 32–52 cm (13–20 in) long, plus 30–51 cm (12–20 in) tail Habitat: Forest Diet: Seeds, fruit, and nuts, as well as insects | LC  Unknown |
| Uta Hick's bearded saki | C. utahickae Hershkovitz, 1985 | Northern South America | Size: 32–52 cm (13–20 in) long, plus 30–51 cm (12–20 in) tail Habitat: Forest Diet: Seeds, fruit, and flowers, as well as insects, leaves, and stems | VU  Unknown |
| White-nosed saki | C. albinasus (I. Geoffroy & Deville, 1848) | Central South America | Size: 41–48 cm (16–19 in) long, plus 30–51 cm (12–20 in) tail Habitat: Forest Diet: Fruit, nuts, and insects | VU  Unknown |
Genus Pithecia – Desmarest, 1804 – thirteen species :
| Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
| Burnished saki | P. inusta Spix, 1823 | Western South America | Size: 30–71 cm (12–28 in) long, plus 25–55 cm (10–22 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | LC  Unknown |
| Cazuza's saki | P. cazuzai Marsh, 2014 | Central South America | Size: 30–71 cm (12–28 in) long, plus 25–55 cm (10–22 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | DD  Unknown |
| Equatorial saki | P. aequatorialis Hershkovitz, 1987 | Western South America | Size: 30–71 cm (12–28 in) long, plus 25–55 cm (10–22 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | LC  Unknown |
| Golden-faced saki | P. chrysocephala I. Geoffroy, 1850 | Central South America | Size: 30–71 cm (12–28 in) long, plus 25–55 cm (10–22 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | LC  Unknown |
| Hairy saki | P. hirsuta Spix, 1823 | Western South America | Size: 30–71 cm (12–28 in) long, plus 25–55 cm (10–22 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | LC  Unknown |
| Isabel's saki | P. isabela Marsh, 2014 | Western South America | Size: 30–71 cm (12–28 in) long, plus 25–55 cm (10–22 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | DD  Unknown |
| Miller's saki | P. milleri Allen, 1914 | Northwestern South America | Size: 30–71 cm (12–28 in) long, plus 25–55 cm (10–22 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | VU  Unknown |
| Monk saki | P. monachus (Geoffroy, 1812) | Northwestern South America | Size: 41–50 cm (16–20 in) long, plus 40–50 cm (16–20 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | LC  Unknown |
| Napo saki | P. napensis Lönnberg, 1938 | Northwestern South America | Size: 20–50 cm (8–20 in) long, plus 20–50 cm (8–20 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | LC  Unknown |
| Rio Tapajós saki | P. irrorata Gray, 1842 | Central South America | Size: About 41 cm (16 in) long, plus about 47 cm (19 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | DD  Unknown |
| Vanzolini's bald-faced saki | P. vanzolinii Hershkovitz, 1987 | West-central South America | Size: 30–71 cm (12–28 in) long, plus 25–55 cm (10–22 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | DD  Unknown |
| White-faced saki | P. pithecia (Linnaeus, 1766) | Northern South America | Size: 28–46 cm (11–18 in) long, plus 32–46 cm (13–18 in) tail Habitat: Forest Diet: Seeds, and leaves, as well as insects and flowers | LC  Unknown |
| White-footed saki | P. albicans Gray, 1860 | Central South America | Size: 36–56 cm (14–22 in) long, plus 36–56 cm (14–22 in) tail Habitat: Forest Diet: Seeds, fruit pulp, leaves, insects, and flowers | LC  Unknown |