Cebus subcristatus, Gray, P. Z. S., 1865, p. 827; id. Cat. Monkeys Brit. Mus., p. 52 (1870).

? Cebus frontatus, Schl., Mus. Pays Bas, vii., p. 206 (1876, part.).

Characters.—Hair of crown elongate, divided by a central line diverging to the eyebrows, forming an erect transverse crest behind them. Fur blackish-brown; sides of face pale ashy; front of shoulders and of arms and outer side of legs, yellowish. Digits long and very slender.

Distribution.—Brazil.

XVI. THE CAPPED CAPUCHIN. CEBUS CAPILLATUS.

Cebus capillatus, Gray, P. Z. S., 1865, p. 827, fig. 1; id. Cat. Monkeys Brit. Mus., p. 52 (1870).

? Cebus frontatus, Schl., Mus. Pays Bas, viii, p. 206 (1876, part.)

Characters.—Hairs of head elongate, diverging in all directions; fur long, brown, slightly washed with yellow, more markedly on the thighs; sides of forehead paler; sides of neck, outer sides of shoulders and arms, fulvous; crown and nape of neck, blackish.

Distribution.—Brazil.

XVII. AZARA'S CAPUCHIN. CEBUS AZARÆ.