Alouatta pigra Lawrence, 1933 . Bull. Mus. Comp. Zool., 75:333.

TYPE LOCALITY: Guatemala, Peten, Uaxactun .

DISTRIBUTION: Yucatan and Chiapas (Mexico) to Belize and Guatemala.

COMMENT: The name villosa has been applied to this species (see Napier, 1976, Cat. Primates Br. Mus. (Nat. Hist.), Part 1, p. 76) but Lawrence, 1933, regarded it as a nomen dubium; see Smith, 1970, J. Mammal., 51:366, and Hall, 1981:260, 263.

PROTECTED STATUS: CITES - Appendix II as Order Primates and U.S. ESA - Endangered as A. pigra .

ISIS NUMBER: 5301406006006005001 as A. villosa .