MAN AND APES. 63 



They have, like the other American 

 monkeys, the extra grinding tooth on each 

 side of each jaw, but at the same time the 

 hindermost grinder, present both in all the 

 other apes and in man, here disappears. 



The great toe is exceedingly small, and 

 each of the five fingers is furnished with long, 

 pointed, and curved claws, while the inner- 

 most of the five fingers (the thumb) is not at 

 all opposable to the others. 



The tail is not prehensile, but long, 

 and furnished with more or less elongated 

 hairs. 



The Marmosets are about the size of 

 Squirrels, or smaller. They are, like Squirrels, 

 active in their motions, and arboreal, living 

 in small troops. They eat fruit and insects, 

 and are very delicate in constitution ; so that, 

 though often brought to this country, they 

 generally live but a short time. Nevertheless, 

 they breed here occasionally, and bring forth 

 as many as three at a birth; while all the 

 other apes habitually bring forth but one. 



