50 



MAMMALIA. 



Genus IV. Tapir, Lin. 



Molars presenting in each before they are worn two trans- 

 verse rectilinear eminences ; six incisors and two canines in 

 each jaw, separated from the molars by a vacant space ; four 

 toes to the fore feet and three to the hind ones. [South 

 America and India.] 



FAMILY III. SOLIPEDES. 



Quadrupeds having only one apparent toe and a single hoof 

 to such foot. One genus. 



Equus, Lin. Horse. 



Six incisors in each jaw, which, when the animal is young, 

 have the crown ridged ; six molars throughout, with square 

 crowns marked with four crescents ; two small canines in the 

 males in the upper jaw (and sometimes in both jaws), which 

 are almost always wanting in the females ; stomach simple 

 and of moderate size; intestines very long. The original 

 country of these animals appears to be the deserts about the 

 Caspian sea. They are found in the wild state in the plains 

 of South America, where they live in troops of sometimes 

 more than ten thousand, commanded by courageous leaders. 

 The Horse, Ass, Zebra. 



ORDER VIII. RUMINANTIA. 



Incisors generally as many as eight in the under jaw alone, 

 and replaced in the upper by a callous pad ; between the 

 incisors and molars is an empty space where, in some genera, 

 we find one or two canines ; molars generally to the number 

 of six throughout ; four feet terminated by two toes and two 

 hoofs, which face each other by a flat surface, whence these 

 animals are called cloven-footed ; sometimes behind the hoof 

 are two small spurs, traces of lateral toes ; the two bones of 

 the metacarpus and metatarsus are united into one called the 

 cannon. There are always four stomachs : the first and 

 largest is called the paunch ; it receives, in large quantities, 



