19U7.] MONKEYS OF THE GENUS CERCOPITHECUS. 721 



In the Bi'itish Museum there are specimens of this local race 

 from the following localities: — Uganda {F. J. Jackson, 99.8.4.1 ; 

 Capt. R.J. yadorhr, 98.10.10.1); Port Alice {H. E. Johnston, 

 1.8.9.16); Manyema {Beche Coll., 93.1.1.1); Bumba, Upper 

 Congo {Capt. We/jus, 1.5.4.1). 



Cercopithecus signatus Jentink. (Plate XL. fig. 3.) 



Cercopitheciis martini P. L. Sclater, P. Z. S. 1884, p. 176, 

 pi. xiv. ; 1893, p. 245 {nee Waterh.). 



CeTGopitliecus signatus Jentink, Notes Leyden Mus. viii. p. 55, 

 1886 ; Pousargues, Ann. Sci. Nat. (8) iii. p. 206, 1896. 



A well-marked species of this group and most nearly allied to 

 C. ascaniits schmidti, but distinguishable at once by the colour 

 and direction of growth of the hairs on the cheek. The black 

 brow- and temple-bands are well developed. The ai'ea of the 

 cheek beneath the latter, down to a line on a level with the corner 

 of the mouth, is covered with hairs speckled greenish yellow and 

 black and of the same colour as those on the top of the head, and 

 directed obliquely downwards and backwards. Low down on the 

 cheek they gradually blend with the white of the throat. On the 

 antei'ior part of the cheek adjacent to the upper lip there is a 

 single rather conspiciious black patch. Hairs on ear white. The 

 top of the head and the neck are uniformly speckled yellow and 

 black ; on the back, and especially on the lumbo-sacral ai-ea, the 

 colour is more rufous than anteriorly. Lastly the tail is not 

 red, but coloured like that of C. petaurista. 



Log. W. Africa (exact locality doubtful). 



In the collection of the Society there is a single skin I refer to 

 this species. It is ticketed Fernando Po, and belonged to a 

 female that lived about ten years in the Gardens, since it bears 

 the dates 19.2.84 to 6.4.94. 'This is the example that Dr. Sclater 

 described and figured as Cercopithecus martini Waterhouse. An 

 examination of a co-type of the latter in the British Museum 

 proves this identification to be erroneous, as Pousargues supposed. 

 If Pousargues, however, had seen a specimen of C. signatus 

 and had been acquainted with C. huttikoferi, he would probably 

 have given a different classification of the '•^Bliinosticti " from that 

 which is printed in his excellent essay on the Monkeys of the 

 French Cone'o. 



The CEPHUS-grol-p. 

 Rhinostictus Trouess. (in part.). 



Resembling the typical species of the Petaurista-group in the 

 practically uniformly speckled colouring of the head, dorsal area, 

 and sides of the body, and usually in the presence of a black brow- 

 band extending backwai-ds to the ears, and of a second black 

 stripe separated from the former by a patch of yellowish hair, and 

 running from the region of the upper lip foi' a varying distance 



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