recognition of the Spix's red-handed howler and Maranhão red-handed howler as species separate from the red-handed howler. Even with these as separate...

previously thought to be a subspecies of the red-handed howler, but unlike that species, the Maranhão red-handed howler is strongly sexually dichromatic. de Oliveira...

of the red-handed howler, but it is now treated as a separate species. Spix's red-handed howler has a similar appearance to the red-handed howler, but it...

Howler monkeys (genus Alouatta, monotypic in subfamily Alouattinae) are the most widespread primate genus in the Neotropics and are among the largest of...

The Colombian red howler or Venezuelan red howler (Alouatta seniculus) is a South American species of howler monkey, a type of New World monkey, found...

The Guyanan red howler (Alouatta macconnelli) is a species of howler monkey, a type of New World monkey, native to Suriname, Guyana, Trinidad, French Guiana...

black howler (Alouatta caraya) or black-and-gold howler, is among the largest New World monkeys and a member of the Alouatta genus. The black howler is distributed...

howler, Alouatta arctoidea Red-handed howler, Alouatta belzebul Spix's red-handed howler, Alouatta discolor Brown howler, Alouatta guariba Juruá red howler...

The brown howler (Alouatta guariba), also known as brown howler monkey, is a species of howler monkey, a type of New World monkey that lives in forests...

The mantled howler (Alouatta palliata) is a species of howler monkey, a type of New World monkey, from Central and South America. It is one of the monkey...