Medium-sized Monkeys

Yellow Monkeys

Campbell’s Mona Monkey

Species Name: Cercopithecus campbelli
Campbell's Mona monkey, also called the Campbell's monkey or Campbell's guenon is a primate species in the Cercopithecidae family. The species was named after Henry Dundas Campbell in 1838.

White-bellied Spider Monkey

Species Name: Ateles belzebuth
The white-bellied spider monkey (Ateles belzebuth), also called the long-haired or white-fronted spider monkey, is an endangered species of spider monkey, a species of New-World monkey. These arboreal monkeys spend most of their time in the canopy. They rarely go down. When they do, they drink water, eat dirt, traverse a treeless area, or run away from an aggressive opponent.

Silvery Marmoset

Species Name: Mico argentatus
The Silvery marmoset (Mico argentatus) is a New-World monkey living in the eastern Amazon rainforest of Brazil. True to its name, the silvery marmoset's body is a striking silver-grey color. Silvery marmosets are primarily arboreal species and can spend their entire lives in trees without descending to the ground.

Midas Tamarin

Species Name: Saguinus midas
The Midas tamarin (Saguinus midas), also called the red-handed tamarin or golden-handed tamarin is a New-World monkey in the Callitrichidae family. Midas tamarin is also known as golden tamarin or red-handed tamarin. This attests to the remarkably vivid colors of the feet and hands.

Mantled Howler Monkey

Species Name: Alouatta palliata
The Mantled howler monkey (Alouatta palliata) is a species of howler monkey, a New World monkey native to South and Central America. The species gets its name "mantled" from the long, protective hairs on its sides.

White-Throated Capuchin

Species Name: Cebus capucinus
White-throated capuchins, also called the white-headed capuchins, Colombian white-throated capuchins, and white-faced capuchins, are New World monkeys native to the tropical rainforests of western Colombia, Ecuador, and Panama.

Central American Squirrel Monkey

Species Name: Saimiri oerstedii
The Central American squirrel monkey also called the red-backed squirrel monkey, is a squirrel monkey type native to the Pacific coast of Panama and Costa Rica. Central American squirrel monkeys spend most of their lives in the middle and upper layers of the tree canopy.

Brazilian Bare-Faced Tamarin

Species Name: Saguinus bicolor
The pied tamarin, also known as the pied bare-faced tamarin or Brazilian bare-faced tamarin, has one of the smallest home ranges of any primate in the world, located in and around the port city of Manaus.

Bonnet Macaque

Species Name: Macaca radiata
The Bonnet Macaque, also called Zati, is a species of macaque native to southern India. Bonnet macaques get their common name from a unique feature: a hood-like tuft of hair that extends from the top of their head, much like a tuft of dry grass. Their marble-round eyes look out into the world with a very expressive forehead.

Black-Tailed Marmoset

Species Name: Mico melanurus
The black-tailed marmoset is a New-World monkey species native to central South America. It is distributed from south-central Amazonia in Brazil to the Chaco far north of Paraguay. Black-tailed marmosets are arboreal and diurnal, using their claws for tree climbing.

Black-Tufted Marmoset

Species Name: Callithrix penicillata
The black-tufted marmoset, also called the Black-pencilled marmosets or Mico-estrela in Portuguese is a type of New-World monkey. They live mainly in the neotropical gallery forests of the central Brazilian plateau.

Black-Headed Spider Monkey

Species Name: Ateles fusciceps
The black-headed spider monkey (Ateles fusciceps) is a species of New-World monkey native to Central and South America. The species name "Ateles" is derived from the Greek word "ateleia" meaning imperfect or incomplete. It was likely chosen because these monkeys do not have a thumb. There are 2 additional sub-species of black-headed spider monkey namely Brown-headed spider monkey (Ateles fusciceps fusciceps) and Colombian spider monkey (Ateles fusciceps rufiventris).

Black-Crested Sumatran Langur

Species Name: Presbytis melalophos
The black-crested Sumatran langur (Presbytis melalophos), also called the Mitred leaf monkey, is a primate species in the Cercopithecidae family. The black-crested Sumatran langur, Raffles' banded langur, Sarawak surili, and black-and-white langur were formerly considered subspecies of Presbytis melalophos.

Black-capped Squirrel Monkey

Species Name: Saimiri boliviensis
The black-capped squirrel monkey is a New-World primate species endemic to the upper Amazon basin in Bolivia, eastern Peru, and western Brazil. Primarily, black-capped squirrel monkeys are arboreal and found in native and plantation forests and some managed areas close to running water.

Black Tamarin

Species Name: Saguinus niger
Also known as western black-handed tamarind, the black tamarind is a species of tamarin native to Brazil. Black tamarind uses primary and secondary forests during foraging, primarily attaching itself to the canopy and spending little time on the ground.

Black Squirrel Monkey

Species Name: Saimiri vanzolinii
The black squirrel monkey, also called the black-headed squirrel monkey or the blackish squirrel monkey is a small New-World monkey native to the central Amazonian region of Brazil. The black squirrel monkey closely resembles the much more common Bolivian squirrel monkey. However, the latter lacks the central black back.

Black Spider Monkey

Species Name: Ateles paniscus
Ateles paniscus, the black spider monkey, is one of three sub-species of spider monkeys. Aside from the face, feet, and hands, they are covered in jet-black hair longer than a typical primate. Of all the Ateles species, Ateles paniscus is the largest.

Black Lion Tamarin

Species Name: Leontopithecus chrysopygus
The black lion tamarin, also called the golden-rumped lion tamarin, is a lion tamarin native to the Brazilian state of Sao Paulo, almost exclusively in Morro do Diabo State Park. Its limited geographic range makes it the rarest of the New-World monkeys.

Black Capuchin

Species Name: Sapajus nigritus
The black capuchin, also called the black-horned capuchin, is a capuchin monkey native to the Atlantic rainforest of southeastern Brazil and extreme northeastern Argentina. The black capuchin was originally called Cebus nigritus or Cebus apella nigritus. Although this has changed, many sources still name the black capuchin as part of the Cebus genus.

Black Bearded Saki

Species Name: Chiropotes satanas
The black-bearded saki is a species of bearded saki, a species of New World monkey, one of the five remaining monkeys of its kind. Another striking feature is its signature beards. This species prefers primary rainforest, where lush tree canopies provide a relatively safe area out of sight and out of reach of several predators.

Bearded Capuchin

Species Name: Sapajus libidinosus
The bearded capuchin, also called the black-striped capuchin, is a New World monkey in the Cebidae family. They are found in central and northern Brazil. Until recently, the bearded capuchins were considered a subspecies of Tufted Capuchins.

Bare-eared Squirrel Monkey

Species Name: Saimiri ustus
The bare-eared squirrel monkey also called the golden-backed squirrel monkey, is a subspecies of the Saimiri sciureus group native to the tropical forests and jungles of South and Central America. The bare-eared squirrel monkey differs from other species because it does not have ear tufts.

Bale Monkey

Species Name: Chlorocebus djamdjamensis
The Bale monkey, also called the Bale Mountain Vervet, is an endangered, forest-dwelling arboreal primate restricted to a small range in the southern highlands of Ethiopia. The bale monkey depends primarily on a single species of bamboo (Arundinaria Alpina) and favors a bamboo forest habitat. These African primates feature small round heads, and their bodies are covered with a layer of dark-brown fur.
Bald Uakari

Bald Uakari

Species Name: Cacajao calvus
The obscure Bald Uakari (Cacajao Calvus) is an acrobatic Amazonian monkey with a flaming red face uniquely adapted to periodically flooded forests. Surprising insights on its taxonomy, specialized seed-based diet, unusual social life, habitat flexibility, and urgent need to conserve diminishing flooded forest habitat across the Amazon Basin.

Azara’s Night Monkey

Species Name: Aotus azarae
Azara's night monkeys, also known as southern night monkeys and Azara's owl monkeys, are native to the Gran Chaco region of South America, a vast area with many different ecosystems, from savannas to grasslands to dry spiny forests and gallery forests. Genetic testing has shown that the males of this species mated pairs are the fathers of the babies they care for.

Aracá Uakari

Species Name: Cacajao ayresi
The Aracá uakari, also called the Ayres black uakari, is a newly described monkey species endemic to the northwestern Brazilian Amazon. The species was found by Jean-Philippe Boubli of the University of Auckland after following local Yanomamo Indians on their hunts along the Aracá River, a northern tributary of the Negro River.

Angolan Talapoin

Species Name: Miopithecus talapoin
Also known as the Southern talapoin, Angolan talapoin is a primate species in the Cercopithecidae family. Tail color varies from grayish-black to brownish-black above and is yellow or yellowish-gray below. The Angolan talapoin monkeys are among the smallest species of Old-World monkeys.
Andean Night Monkey

Andean Night Monkey

Species Name: Aotus miconax
Andean night monkeys are a genus Aotus, commonly known as nocturnal monkeys or the Peruvian night monkey. Species in this genus are the only truly nocturnal monkeys in the world. Andean night monkeys are not sexually dimorphic as males and females look very similar.

Allen’s Swamp Monkey

Species Name: Allenopithecus nigroviridis
Allen's swamp monkeys are small, stocky monkeys with gray to brown fur and long tails. These highly social primates live in the swamp forests of central Africa, where they mostly spend their time in the trees. It was named after Joel Asaph Allen, an American zoologist.

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