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 Pithecia irrorata Gray 1842 Pithecia irrorata Gray 1842 , Ann. Mag. Nat. Hist., ser. 1, 10: 256 . Type Locality: Brazil , Pará, West bank of Rio Tapajós, Parque Nacional de Amazônia. Vernacular Names: Rio Tapajos Saki . Synonyms: Pithecia vanzolinii Hershkovitz 1987 . Distribution: South of the Amazon in SW Brazil ; SW Peru ; E Bolivia . Conservation: CITES – Appendix II; IUCN – Lower Risk (lc). Discussion: Includes some specimens identified by Hershkovitz (1979) as P. hirsuta . May prove to be a subspecies of P. monachus ( Hershkovitz, 1987 d ) .