THE GUENONS. 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, col- 

 lected 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. 



XXIX. stairs' guenon. cercopithecus stairsi. 



Cercopithecus stairsi, Sclater, P. Z. S., 1892, p. 580, pi. xl.; 

 1893, pp. 252, 443, and 612. 

 Characters.— Adult Male. — Face black, except a ring round the 

 eyes, which is flesh-coloured ; ridge of the nose and a band 

 above the eyesfrom ear to ear black, surmounted by another 

 band of long erect yellowish-white hairs ; ears naked ; whiskers 

 bushy, greyish-white, washed with greenish-yellow ; on each 

 side of the forehead a bright chestnut band is carried over the 

 head behind the ears ; back of the head, nape, and anterior 

 part of the back grey, variegated by black lines and washed 

 with yellowish ; back of the shoulders dark grey ; back, espe- 

 cially the lower part, yellowish-grey, with a rufous patch on 

 the rump above the tail ; external surface of the arms blackish- 

 grey ; hands black ; outside of the legs grey ; feet not so black 

 as the hands ; anal region, and about three inches of the base 

 of the tail rufous-yellow ; scrotum dark indigo blue ; throat, 

 under surface of body, and inner side of Hmbs milky white ; 

 the whole of the hair of the upper parts minutely grizzled. 

 Length of body, 18 inches; tail injured. {Sclater.) 



Young Female. — Differs from the male in being lighter in 

 colour ; back below the nape, sides, thighs, legs, and upper 



