_Cercocebus fuliginosus_, Geoffr., Ann. Mus., xix., p. 97 (1812); Gray,
Cat. Monkeys Brit. Mus., p. 27 (1870); Schl., Mus. Pays-Bas, vii., p. 95
(1876).
_Le mangabey_, F. Cuv., Hist. Nat., Mammif., livr. vi. (May, 1819).
{38}_Simia fuliginosa_, F. Cuv., Mamm., livr. xxxv. (Dec., 1821).
_Cercopithecus fuliginosus_, Martin, P. Z. S., 1838, p. 117.
CHARACTERS.--Hair on the crown of the head not elongated, but directed
backward; no beard; eyebrows prominent. Face, ears, and hands nude; tail
long and carried over the back; whiskers small, directed backward, below
and behind the ears. Face of a livid brownish colour; ears, hands, and feet
darker; fur on the upper parts of the body and the outside of the limbs
sooty-black; chin, throat, breast, cheek-whiskers to below the ears, the
under side of the body, and inside of the limbs, ashy-grey; the whiskers
sometimes of the same colour as the back; tail darker grey.
DISTRIBUTION.--West Africa: Liberia.
HABITS.--Writing of this species, Frederic Cuvier observes that it is of a
happy disposition, gentle and companionable, but rather petulant.
Ceaselessly active, it indulges in the most grotesque antics and attitudes,
so that it has been believed [of course erroneously] that they possess more
joints in their bodies than other species. The males especially have the
constant habit of making a grimace which exhibits their long canine teeth.
The females are still more gentle, and fond of being caressed.
Mr. Büttikofer found this species to be rather rare in Liberia. It was
occasionally seen on low trees, but chiefly on the ground, where it
searches for fallen fruits.