LECTURE II. 45 



There is a smaller species, resembling this in every 

 respect except size, and in having the face less 

 brilliantly coloured. It is the S. Malmon of Lin- 

 naeus, and is often considered as a variety of the 

 former, but it rather seems to be truly distinct. 

 Among the Monkeys properly so called, or those 

 with very long tails, the common green monkey^ or 

 S. Sabcea of Linnseus, furnishes a good example. 

 Its colour is a dark greenish grey, with the under 

 parts of the body and insides of the limbs white : 

 the tail long and blackish. 



I must not omit to mention, that some Mon^ 

 keyS;, .particularly those of America, are furnished 

 Tidth what Linncfeus calls a prehensile tail ; that 

 part being so constituted, as to possess the power 

 of strongly coiling round any object at pleasure, 

 .and thus answering in some degree the purpose 

 of a fifi h hand : the undei* part of the tail, in such 

 monkeys, is generally bare, and lined with a very 

 strong elastic skin. 



To those who wish to become acquainte'd with 

 the several species of this extremely extensive 

 genus, I must recommend the coloured plates of 

 Schreber, who, in his work on the Mammalia, has 

 collected almost ail whicii have been hitherto de- 



