Alouatta belzebul (Linnaeus, 1766) . Syst. Nat., 12th ed., 1:37.

TYPE LOCALITY: Brazil, Parâ, Rio Capim .

DISTRIBUTION: N Brazil (mainly south of Lower Amazon, east of Rio Madeira); Mexiana Isl (Brazil); in Parâ Prov. (Brazil), N of Amazon.

STATUS: CITES - Appendix II.

SYNONYMS: beelzebub; discolor Spix, 1823; flavimanus, mexianae; nigerrima Lönnberg, 1961; rufimanus Kuhl, 1820; tapojozensis, ululata, villosus .