Campbell's Monkey. 



Cereopithecus Campbelli, Waterhouse, Proc. Zool. Soc. 1838, p. 61. 



Tins species appears most closely allied to the Cereopithecus Mona of Schreber; it has not, 

 however, the large white spot on the upper part of each thigh which serves to characterize that 

 animal. 



This monkey is named after the late Governor of Sierra Leone, Major Campbell, who brought 

 an imperfect specimen of it from that country ; my specimens were said to be from the Mandingo 

 Country. The only perfect specimen I have seen is now living in the gardens of the Society. 



The most remarkable characters in the animal are its long fur, and the hairs being divided 

 on the back, as in most of the species of the genus Colobus. The average length of the hairs of 

 the back is about two and a half inches ; on the hinder half of the back, however, they exceed 

 three inches. These hairs are grey at the base, and the remaining portion of each hair is black, 

 with broad yellow rings, the latter colour prevailing. On the posterior half of the body, and 

 the outer side of the hinder legs, the hairs are of a deep slate grey, and almost of an uniform 

 colour; some of those on the middle of the back are obscurely freckled with deep yellow, and 

 those on the thigh are very indistinctly freckled with white. The belly, inner side of limbs, fore 

 part of thigh, chest and throat, are white. The hairs of the cheeks and sides of the neck are very 

 long, and of a greyish white colour, grizzled towards the apex with black and yellow ; some 

 whitish hairs, tipped with black, are observable across the fore part of the forehead. The inner 

 side of the ears is furnished with very long hairs of a greyish white colour, obscurely annulated 

 with grey and pale yellow; these hairs vary from three-quarters of an inch, to an inch in 

 length. The fore legs are black externally. The hairs on the upper side of the tail are grizzled 

 with black and dirty yellow, and on the under side, with black and brownish white. The apical 

 portion of the tail, which is furnished with longish hairs, is black, the black hairs occupying 

 about one-third of the whole length of the tail. 



