Order Primates Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 111 184 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Alouatta sara Elliot 1910 Alouatta sara Elliot 1910 , Ann. Mag. Nat. Hist., ser. 8, 5: 283 . Type Locality: Bolivia , Sara Prov. , Santa Cruz . Vernacular Names: Bolivian Red Howler . Distribution: Bolivia (Sara Province), Peru , and Brazil to the Rio Negro and Rondônia . Conservation: CITES – Appendix II; IUCN – Lower Risk (lc). Discussion: A. seniculus species group. Separated from A. seniculus by Minezawa et al. (1985) .