6oO MANUAL OF ZOOLOGY. 



of the fore-feet are either wanting, or, if present, are not oppos- 

 able to the other digits j and the tail is generally prehensile. 

 The Platyrhine Monkeys are exclusively confined to South 

 America. 



Section C. Caiarhina.^ln this section the nostrils are ob- 

 lique, and placed close together. The thumb of the fore-limb 

 (pollex), with one exception, is present, and is always oppose 

 able to the other digits. The Catarhine Monkeys are restricted 

 entirely to the Old World, and, with the single exception of a 

 Monkey which inhabits the rock of Gibraltar, they are exclus- 

 ively confined to Africa and Asia. It is in the Catarhine sec- 

 tion of the Quadrumana that we have the highest group of 

 the Monkeys — that, namdly, of the Anthropoid or Tail-less 

 Apes. 



Strepsirhina. 



This section of the Quadrumana, as before said, is charac- 

 terised by the possession of twisted or curved nostrils, placed 

 at the end of the snout. The incisor teeth are generally much 



modified, and are in number - — - as a rule : the lower 

 . . 3—3 3_, 

 mcisors are produced and slanting ; the prjemolars are 



2 2 ^ ^ 



or ~rzzz^ and the molars are tuberculate. The second digit 



of the hind-limb has a claw, and both fore and hind feet have 

 five toes each, all the thumbs being generally opposable. In 

 the true Lemurs, all the digits, except the second toe of the 

 hind-feet, are furnished with nails. 



This section is often called that of the ProsimicB, and it in- 

 cludes several families, of which the Aye-Ayes, Loris, and true 

 Lemurs are the most important. In many works the Galeo- 

 pithecus is also placed in this section. 



The family of the Aye- Ayes {Cheiromydce) includes only a 

 single animal, the Cheiromys Madagascariensis. In appearance 

 the Aye-Aye is not very unlike a large Squirrel, having a hairy 

 body and a long bushy tail. There are no canines, and the 

 molars are separated by a wide interval from the incisors. The 

 incisors are ploughshare-shaped, and grow from permanent 

 pulps, as in the Rodents. The fore-feet have five toes, armed 

 with strong claws, but the pollex is scarcely opposable to the 

 other digits. The middle-finger is about as long as the ring- 

 finger, but only about half as thick, its last two joints being 

 hairless. The hind-feet have also five toes, of which the hallux 

 is opposable, and the second digit is furnished with a long 



