30 



MAMMALIA. 



ORDER IL QUADRUMANA* 



Resemblance to Man greater than in any other animals; 

 hands to the inferior as well as to the superior extremities ; 

 the three kinds of teeth, incisive, canine and molar; eyes 

 directed to the front, or at least obliquely ; mammae upon the 

 breast; each hemisphere of the brain composed of three 

 lobes, of which the posterior covers the cerebellum ; intestines 

 like those of man ; climbing, fructivorous animals. In con- 

 sequence of this family having the toes of the hind feet free 

 and opposable to the others, they climb trees with the greatest 

 facility, while it is only with pain and difficulty they can 

 stand or walk upright ; their foot then resting on its outward 

 edge only, and their narrow pelvis being unfavourable to an 

 equilibrium. Three families. 



FAMILY 1. SIMIA, Lin. MONKEYS PROPER. 



Four vertical incisive teeth in each jaw ; molars with blunt 

 tubercles ; the nails of the fingers flattened, and all of the 

 same form, with the exception of the genus Ouistitis ; size 

 diminutive or middling ; skull almost always rounded ; muz- 

 zle somewhat prolonged ; neck short ; body slender ; limbs 

 slim and long ; hair close, long and silky ; the four straight 

 incisors in each jaw, and the flat nails on all the extremities, 

 are characteristics which approximate the monkeys more 

 nearly to man than the subsequent families. Two tribes. 



Tribe I. Monkeys of the Old Continent. 



Five molar teeth on each side and on each jaw ; nostrils 

 open beneath the nose, and separated by a narrow partition ; 



+ Hnvino- four hands. 



