_Cercopithecus opisthostictus_, Scl., P. Z. S., 1893, p. 725.
CHARACTERS.--Back black, speckled with pale grey; head darker; back of the
neck, shoulders, external aspect of the hands and feet, and the tail
(except at its base), black; a small spot on the lower back on each side of
the tail rufous; under side blackish. Length of body, 24 inches; of tail,
25 inches. (_Sclater._)
{73}DISTRIBUTION.--British Central Africa: near Lake Mweru.
HABITS.--Unknown. The skin of this Monkey is used by the natives to form
dresses, and from specimens of these, collected by Mr. A. Sharpe, H.B.M.
Vice-Consul in Southern Nyasa Land, during his journey from the north end
of Lake Nyasa to Lake Mweru and the Luapula, this species has been
described by Dr. P. L. Sclater.