HOWLER MONKEYS

The howler monkey genus, Allouatta,
includes at least 15 species and 7 subspecies

Alouatta caraya

CONSERVATION STATUS: NEAR THREATENED

Black-and-gold howler monkeys, also known as black howler monkeys, are found in the rainforests of central South America. These New World monkeys range through eastern Bolivia, southern Brazil, Paraguay, and northern Argentina. Their habitat varies from tropical semi-deciduous forests to tropical deciduous forests…

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Alouatta sara

CONSERVATION STATUS: NEAR THREATENED

The Bolivian red howler monkey occurs in central and northern Bolivia. Despite its name, this species is also found in southern Peru. In Bolivia, these monkeys are found from the Department of Pando south along the Andean Cordillera and east into central Bolivia. Their range includes the Río Beni basin and extends east as far…

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Alouatta palliata

CONSERVATION STATUS: VULNERABLE

Mantled howler monkeys, also called Ecuadorian mantled howling monkeys and South Pacific blackish howling monkeys, are found on the southern tip of Mexico and in Veracruz, southern Guatemala, Costa Rica, Panama, the west coast of Ecuador, and Colombia at elevations of up to 6,562 feet (2 km). Mantled howlers live in…

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Photo credit: Peter Schoen/ Creative Common​s

Alouatta guariba guariba

CONSERVATION STATUS: CRITICALLY ENDANGERED

Although there has been some posturing and jostling among researchers as to whether this monkey is a distinct species or a subspecies, the International Union for the Conservation of Nature (IUCN) recognizes the northern brown howler monkey as one of two subspecies of the brown howler monkey; the southern brown howler…

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Photo credit: Sidnei Dantas/Creative Commons

Alouatta belzebul

CONSERVATION STATUS: VULNERABLE

Red-handed howler monkeys are found in Amazonian Brazil and surrounding regions. The northeast states of Brazil consist of Maranhão, south Amapa, Para, Sergipe, and Tocantins and the fragmented Atlantic forest region consists of the states of Pernambuco, Rio Grande do Norte, Piauí, Alagoas, and Paraiba. The range of this…

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Alouatta pigra

CONSERVATION STATUS: ENDANGERED

Yucatan black howler monkeys are also called Guatemalan black howlers, Lawrence’s howlers, and Mexican black howlers. In Belize, they are commonly referred to as baboons, although they are not at all related to African baboons. Yucatan black howlers are found in Belize—the location of their most widespread population…

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