1907.] MONKEYS OF THE GENUS CERCOPITHECUS. 739 



and long, and the hairs show the same predominance of the pale 

 band. There is also an example in the British Museum labelled 

 Fort Hill, Mt. Kenia (*S'. L. Hinde, Reg. no. 2.7.6.1), representing 

 the same or a closely allied form. 



Subsp. CENTRALIS Neumann. 



Cercopithecus centralis Neumann, Zool. Jahrb. Syst. xiii. p. 533, 

 1900. 



General colour fairly uniformly greenish, speckled with black. 

 Whisker-hairs short, not concealing ears, the ends of the long 

 hairs indistinctly banded. Tail grey, yellowish at root above ; 

 black at end. The rusty-red hair on the root of the tail and 

 above the callosities small in quantity (perhaps owing to imma- 

 turity of specimens). Forearm below elbow and hind leg below 

 knee ashy grey, speckled ; wrist and hand black ; ankle grey, foot 

 blackish. Under-fur sooty grey on back, pale grey at sides. In 

 the male the hairs round the scrotum, and in the female those on 

 the pubic area, are tinged with red as in C tantalus (this would 

 probably increase in quantity with age). 



S . Head and body 530 mm., tail 445 mm. 

 9 614 525 



Log. Dakota and Ssesse Island [Reumann). 



The above-given descrijDtion is taken from two examples in the 

 British Museum, from Barumba, in Ankole, 5000 ft., collected 

 by the late Mr. W. Doggett. Mr. Thomas tells me they were 

 identified by Dr. Neumann, whose original description of this 

 Monkey is too brief to be of any value. 



In the British Museum there is the skin of a specimen from 

 the Juba River, S. Somaliland, which only differs in minor points 

 from the specimens above referred to C. p. centralis. Neumann 

 also records, but refrains from naming, examples also from the 

 Juba River, setting them aside as allied to G. riifoviridis. 



Cercopithecus nigroviridis, sp. n. (Plate XLII. fig. 5.) 



Skin of face black, pale on the cheek ; hairs on upper lip and 

 adjacent to face black. A very narrow black supei-ciliary band, 

 also a narrow black stripe continued laterally from the corner of the 

 eye towards the ear. Hairs on cheeks directed straight backwards, 

 blackish grey near the face, and with an obscure golden subapical 

 band towards the ear, where they are of much the same tint as 

 those on the summit of the head. Hair on summit of head, neck, 

 back, shoulders, and sides of body black with two narrow rich 

 golden-yellow bands, which are much narrower than the black 

 area between them or than the apical area. Hence the black is 



