210 



VERTEBRATA. MAMMALIA. 



respects. With one exception, the Prongbuck of N. 

 America (A. Furcifer), the horns do not form antlers, 

 but are in general twisted spirally. Africa is the 



CAANA (Antilope Oreas), SPRINGBOK (A. Euckore\ and BLAUWBOK 

 (A. Pygmcea). 



great home of the Antelopes, whose southern plains 

 are thronged with innumerable hosts, which, driven 

 by drought into the cultivated districts, eat up 

 " every green herb ;" leaving the region a desert, as 

 if an army of locusts had passed. The beautiful 

 Spring-bok (A. Euchore), remarkable for the fold of 

 skin upon the croup, which, opening as the animal 



