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hne, but the rest of the imder-parts are quite differeut. It Las been suggested 

 that this monkey is a hybrid between a baboon (such as Mandrill or Drill) 

 and a species of Cercocebus or Cercopithecus. If this were the case the nose 

 wonld probably be loncer, the tail much shorter, and the cheek-jionthes (which 

 are large) of small dimensions. Moreover the orange under-snrface could not 

 be accounted for in this way ; so that this theory may be rejected and the 

 specimen regarded as a distinct species, which may provisionally be assigned 

 to the genus Cercocebus. 



