Bearded saki

Source: Wikipedia, the free encyclopedia.

Bearded sakis[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Family: Pitheciidae
Subfamily: Pitheciinae
Genus: Chiropotes
Lesson
, 1840
Type species
Lesson, 1840
( = Cebus satanas Hoffmannsegg
, 1807)
Species

Chiropotes satanas

Chiropotes chiropotes

Chiropotes israelita

Chiropotes utahickae

Chiropotes albinasus

Chiropotes sagulatus

The bearded sakis, or cuxiús,

allopatric
, their distributions being separated by major rivers.

Bearded sakis differ from the closely related

Pithecia
by a pronounced beard, a tuft of hair that extends from its jaw, down its throat to the top of its chest, and is strongly pronounced particularly in the males. The tail is long and hairy, and is used for balance and not grasping. Bearded sakis reach from 32 to 51 cm (13 to 20 in) in size and a weight from 2 to 4 kg (4.4 to 8.8 lb).

Like many New World monkeys, bearded sakis are

primates such as capuchin and squirrel monkeys
.

Fruits form the main part of the diet of the bearded sakis, but they also eat nuts, buds, leaves, insects and small

vertebrates
.

Once a year (usually in early autumn or late summer) the female bears a single offspring after a 5-month gestation. After about three months it begins to explore its environment independently and on it is briefly cured. Bearded sakis reach full maturity at 4 years of age. Their life expectancy is approximately 15 years.

Bearded sakis are highly sensitive to hunting and

IUCN (they do not recognize C. israelita, but do recognize C. sagulatus) are considered at least vulnerable, with C. satanas being endangered.[3]

Classification

White-nosed saki (Chiropotes albinasus).

Until recently, only two species were recognized in this genus, but C. israelita was re-validated in 2003 (having long been considered a

IUCN note the taxonomic confusion, but lists C. sagulatus as a valid species, with C. israelita as a synonym.[5]

References