Species of Howler Monkeys

There are 5 species of red howler monkey, living in different regions:

Venezuelan red howler (Alouatta seniculus) – northwestern South America

Bolivian red howler (Alouatta sara) – Santa Cruz Department, Bolivia

Guyanan red howler (Alouatta macconnelli) – northeastern South America

Juruá red howler (Alouatta juara) – southeastern Amazon basin

Purus red howler (Alouatta puruensis) – southeastern Amazon basin