Pithecia pogonias, Gray, Voy. Sulphur, p. 13, pl. 2 (1844).
Characters.—Male.—Hair black, very long over the body, and especially on the tail. Head with short hair, white, washed with yellow and divided by a central nude black streak; the white hair becoming yellow on the cheeks.
Female.—Greyish-black, washed with pale yellow, the hairs being tipped with the latter colour; moustache yellow; belly red.
Young Male.—Belly rufous brown.
Distribution.—Interior of Demerara, Kaicteur Falls; Rio Negro, and Rio Branco in Amazonia; Cayenne; Surinam.
III. THE BLACK SAKI. PITHECIA SATANAS.
Saki noir, F. Cuv., Hist. Nat. Mammif., pl. 78.
Simia satanas, Hoffm., Mag. Ges. Berl., x., p. 93 (1807); Humb., Obs. Zool., i., p. 314, pl. xxvii. (1811).
Pithecia satanas, Geoffr., Ann. Mus., xix., p. 115 (1812); Scl., P. Z. S., 1864, p. 712, pl. xli.; id., t. c. p. 138; Schl., Mus. Pays Bas, vii., p. 224 (1876).
Chiropotes cuxio, Lesson, Sp. Mamm. Bimanes et Quadrum., p. 179 (1840).