Alouatta is a New World Monkey genus (Platyhrrini pavorder) of the Atelidae family, subfamily Alouattinae.

 

Such species are popularly known as howler, guariba or bearded monkeys.

 

The taxonomy of the genus is very complex, involving classifications into  major complexes, such as:

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• Central America 

• Cerrado-Pantanal Biomes 

• Amazonic-Atlantic Forest

 

Authors, however, differ from each other, pointing out at different taxa occasionally assumed as 'species'

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• A. palliata

• A. pigra

• A. coibensis​

• A. nigerrima

• A. belzebul

• A. ululata

• A. discolor

• A. seniculus

• A. arctoidea

• A. maconnelli

• A. sara

• A. juara

• A. caraya

• A. guariba

• A. clamitans

• A. fusca

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