THE SAKIS. 183 
Pithecta monachus, Geoffr, Ann. Mus., xix., p. 116 (1812) ; 
Flower, P. Z. Sj) 8862,3p,. 326, plo xxxvil. Gray, Cat: 
Monkeys Brit. Mus., p. 59 (1870). 
fithecia hirsuta, Spix, Sim. et Vespert. Bras., p. 14, pl. 9 
(1823). 
Pithecta inusta, Spix, t.c. p. 15, pl. x. (1823). 
fitheaa trrorata, Gray, Voy. Sulphur, Zool., p. 14, pl. 3 (1844). 
Pithecia albicans, Gray, P. Z. S., 1860, p. 231, pl. 1xxxi. 
Pithecia monacha, Schl., Mus. Pays Bas, vu., p. 220 (1876). 
Characters.—F ur harsh, long and loose, with a hood of for- 
wardly-directed hairs on the upper part of the head, neck, and 
shoulders. Face bare, long, and narrow ; nose large and full ; 
nostrils widely separated and lateral. Face dark purplish- 
brown, and black on the nose, paler round the eyes, and 
sparingly covered with short coarse whitish hairs ; a yellowish- 
white patch on the cheeks, terminating in front in a distinct 
line from the inner corner of the eye to below the angle of the 
mouth ; margin of upper lips white ; ears large, round, naked, 
and of the same colour as the face; upper part and back of 
head, neck, shoulders, back, arms, thighs, and tail, black, 
washed with yellowish-white, becoming yellowish-brown on the 
hinder part of the body. Throat, breast, under side of body, 
and inside of thighs, pale yellowish-brown, sparingly haired. 
Tail 18 inches long, cylindrical, and bushy at the end; the hair 
long, coarse, curled, black, washed with pale yellowish-brown. 
Legs black; fore-arm black, washed with white ; upper surface 
of hands, feet, and digits, white. Hands small, thumbs short, 
parallel to the other fingers; nails black, somewhat com- 
pressed, pointed, that of the thumb flatter; great-toe well 
developed, standing apart from the other toes, its nail flat 
