318 CLASS MAMMALIA. 



The Couxio, (Simia Satanas, HofmannseggJ. The only- 

 monkey with which the Capuchin of the Oronoco can be con- 

 founded is the present, described by the Count Hofmanns- 

 egg # . Though this bears a general resemblance to the last, 

 it differs, 1. In colour, which in this, in the adult animal, 

 is black or brownish black, instead of red inclining to brown. 



2. In the hair of the back, which in this is much longer. 



3. In the chest, which is almost naked. 4. In the long 

 hair of the head not being divided or parted. 5. In the 

 tail being thicker and more bushy, and 6. In this circum- 

 stance — that the young Couxio is of a brownish gray instead 

 of being of a red colour, which, as it is said, is proper to 

 the young Capuchin. It measures about two feet nine inches 

 from the top of the head to the extremity of the tail. 



The Cacajao, {Simia Melanocephala, Humboldt). All the 

 American monkeys, known previously to the Baron Hum- 

 boldt's enterprising travels, have the tail either rather 

 longer than the body or about one third less in length — 

 there were neither apes, as that word was originally applied, 

 that is, monkeys without tails, nor were there baboons of 

 monkeys with short tails known, proper to that continent. 

 This circumstance renders the more interesting the dis- 

 covery by Humboldt, of a short-tailed American species — 

 one which is in that respect among the monkeys of the new 

 world, what the Magot, (Simia inuus), and some others, 

 are among those of the old. 



The species in question among other synonyms has one 

 Mono feo 9 signifying the hideous monkey, and another 

 Mono rabon,the short-tailed monkey, by the Missionaries ; 

 it appears, nevertheless, not to be at all a common species. 

 The specimen described by Humboldt, measured a little 

 more than one foot five inches, from the top of the head to 



* In the Magasin delaSoci£te des Scrutatenrs de la Nature, April, 1807, 

 Berlin. 



