316 CLASS MAMMALIA. 



agreeable guttural sound {quer quer) ; his throat became 

 inflated when he was irritated, at which time he was not 

 unlike a cat when attacked by a dog. 



The singular habits of this animal, especially his noctur- 

 nal propensity, analogous to some of the Lemurs, and his par- 

 tially carnivorous regimen, seem to raise a strong presump- 

 tion against the accordance of his physical peculiarities with 

 those of other monkeys, in answer to which we have the 

 authority of his illustrious describer that they do. No op- 

 portunity has yet been afforded in Europe of anatomical 

 investigation. 



The Capuchin of the Orinoco, {Singe cheiropotes, Hum- 

 boldt,) is also brought to light by Humboldt. It is the 

 Mono capuchino of Spanish Guiana, and differs essentially 

 from the Simia Capucina of Linnaeus, the Sai or Singe 

 pleureur of BufFon. It is to be regretted that naturalists 

 should have applied the name Capuchin to a beardless 

 animal, as the appellative applies infinitely better to the 

 species now under consideration as a descriptive denomi- 

 nation. 



This species is nearly the size of the four-fingered mon- 

 key (Simia paniscus). Its colour is reddish brown ; its 

 hair is long and smooth. The head has the form of a 

 lengthened oval, describing a facial angle of about 52°. 

 The face and hands are black and naked. The forehead and 

 top of the head are covered with thick long hair, directed 

 forward and parted above the eyes into two thick distinct 

 tufts. This singular division is formed by a longitudinal 

 line, without hair, separating the two tufts. Its eyes are 

 large and deeply seated. The openings of the nostrils are 

 distant from each other. The canine teeth are of an enor- 

 mous length and size. The beard is blackish brown, it 

 springs from below the ears and covers a part of the chest. 

 The head, thighs, and tail, are deeper in colour than the rest 

 of the body. The nails are slightly bent, with the exception 



