Callithrix humeralifer (É. Geoffroy, 1812) . Ann. Mus. Hist. Nat. Paris, 19:120.

TYPE LOCALITY: Brazil, left bank of Rio Tapajós, Paricatuba .

DISTRIBUTION: Brazil, between Madeira and Tapajós rivers, south of the Amazon.

STATUS: CITES - Appendix II; IUCN - Insufficiently known as C. h. chrysoleuca .

SYNONYMS: chrysoleuca, melanoleucus, santaremensis, sericeus .

COMMENTS: For synonyms see Hershkovitz (1977:595-598); intermedius was transfered to C. argentata by Ävila-Pires (1985). Coimbra-Filho (1990), who called this species humeralifera, listed chrysoleuca and intermedia as distinct species.