744 



ME. R. I. POCOCK — A REVISION OF 



[June 18, 



Young. In young examples refei'red by me to this species the 

 hairs clothing the upper and lower lips are black and not white 

 as in the adult ; and the outer sides of the legs and arms are pale 

 yellowish red. I have very strong reasons for suspecting, although 

 no actual proof of the fact is supplied by observation of the process 

 in an individual, that the hairs of the lips turn from black to white 

 and those of the appendages from yellowish to white during 

 growth. 



Text-fio-. 19.3. 



Cercopithectis 'patas ptjrrlionotus Hempr. & Elivpiib. 

 (From a specimen from Uganda in the Society's Gardens.) 



Subsp. PYRRHONOTUS Hempr. & Ehrenb, (Text-fig. 193.) 



I also suspect that the nose of the white-nosed eastern form of 

 this species, for which the oldest name appears to be pyrrhonotus, 

 is black in the young. The Society possesses skins that 

 I refer to this form, at all events pi'ovisionally, from Uganda 

 (C. R. Hall) and Gondokoro {Col, Bruce). They may be dis- 



