290 class mammalia. 



under the name of Maimon, which is also the Simia Ery- 

 thraea of Schreber. The brown baboon, or Maimon of BufFon, 

 is the pig-tailed monkey of Edwards, the Maimon of Aude- 

 bert, and the " Singe a queue de Cochon" of Frederic 

 Cuvier, to which theLinnsean name of Nemestrina properly 

 belongs. 



We shall now make a few general observations on the 

 Cynocephala. 



The quadrumana which constitute this subdivision, are 

 so intimately related that their natural resemblance is at 

 first extremely striking, In fact, their habits of body, the 

 expression of their physiognomy, the proportions of their 

 limbs, announce them to be all of the same family, and a 

 more attentive examination of their organs completely con- 

 firms this judgment. This uniformity of character has, 

 however, been but lately recognised and acknowledged. 

 Our author and M. GeoflfroySt. Hilaire were the first to sepa- 

 rate these quadrumana from other monkeys, with which they 

 had been confounded. In fact, the character of the tail chosen 

 by Linnaeus for the purpose of classification, could never give 

 birth to natural divisions. That one organ should properly 

 form the characteristic distinction of any group of animals, 

 it is necessary that its importance should be such, as that 

 its absence must produce a fundamental alteration in the 

 other parts. Now, among the quadrumana of the old 

 world, the tail is an organ, apparently, in a great measure 

 useless, employed for no purpose, and may be considered 

 as merely rudimental. Accordingly, we cannot adopt this 

 character for the Cynocephala,when we have once combined 

 these animals by a consideration of the general assemblage 

 of their organs ; for any thing remarkable in their tails, is 

 yet common to them with some other monkeys, in all other 

 respects totally dissimilar. 



Our author and M. Geoffrey St, Hilaire took the facial 

 angle, as a distinctive character of the quadrumanous 



