THE MALBKOTTK, 155 



by successive darts from one side of its cage to the 

 other, performed by the force of its feet alone, and 

 would keep up this severe motion for a considerable 

 period. When young it was docile and mild-tempered, 

 but age brought with it propensities more brutal. 

 The chief characteristic of its disposition, as it is in all 

 the congeners, is extreme caution, or, as it were, an 

 arrangement or previous plan of the actions to be 

 performed ; thus, in their attacks, the opportunity is 

 watched when the person or animal is off their guard 

 and otherwise employed, and it is always made froiu 

 behind; wounds are inflicted with the teeth and 

 nails, and a sudden dart places them at a distance, 

 where they will remain, showing their anger with ex- 

 pressive changes of countenance, and watching the 

 time when the attack can be with safety renewed. 



The countenance of this animal becomes more like 

 that of the baboons, and, with the feet and skin of the 

 ears, is black. The cheeks, chin, and a band above the 

 eyes, are white, as also the under parts and the insides 

 of the legs ; all the other parts are of a yellowish-green, 

 and the general contour is so similar to the green mon- 

 key, that it has been mistaken for it in a young state. 



Another allied animal, equally remarkable for the 

 beauty of its yellowish-green fur, is the red-vented 

 monkey, Cercocebus pygeryihrceus a native of the 

 forests to the interior of the Cape, truly arboreal, and 

 never met beyond the boundaries of the larger woody 

 tracts. The form is somewhat different; but the 



