_Cercopithecus erythrotis_, Waterh., P. Z. S., 1838, p. 59; 1841, p. 71;
Martin, Mammif. An., p. 535 (1841); Fraser, Zool. Typ., pl. iv. (1848);
Wagn., in Schreb. Säugeth. Suppl., v., p. 49 (1855); Gray, P. Z. S.,
1868, p. 182; id., Cat. Monkeys Brit. Mus., p. 21 (1870); Schlegel, Mus.
Pays-Bas, vii., p. 70 (1876); Scl., P. Z. S., 1884, p. 176, 1893, p. 246.
{53}CHARACTERS.--General colour of back, sides, and outer aspect of the
hind-limbs, black, speckled with yellowish-grey, or with golden-yellow on
the hinder part of the back--the hairs being black, ringed with yellow or
gold respectively; face nearly nude, except for a few short hairs on the
upper part of the nose; region round the eyes, livid blue; nose red; chin
white; a black bar from the eye to the ear; below this a broad white
whisker-streak on the cheeks, beneath which again there arises from the
corner of the mouth and cheeks another black, yellow-ringed, tuft of hair;
ears rusty-red internally; external aspect of the fore-limbs blackish;
throat, under surface of the body, and inner side of the limbs
greyish-white; tail bright rufous, except for a dark line along its upper
surface; anal hairs bright red. Length of body, 17 inches; tail, 23 inches.
DISTRIBUTION.--This rare and very beautiful Monkey has its home in the
island of Fernando Po.