- Note: (Syn. Alouatta belzebul ululata). Whereas Alouatta ululata Elliot, 1912 was considered as a synonyms of Alouatta belzebul, Gregorin (2006) placed it as distinct species, followed by IUCN
- Note: Many authors and source (Mammal Species of the World & ITIS) don't recognize this species or recognize it as a synonyms of Alouatta belzebul. But Gregorin (2006) & IUCN & en.wikipedia accept it as distinct species.
Media in category "Alouatta ululata"
This category contains only the following file.