A DISTINGUISHING MARK 51 



rump-patch of the Prong-Horn is one of Nature's errors. It 

 enables a pursuer to mark the animal long after it should 

 really become invisible. 



The Prong-Horned Antelope is next in size to 1 the smaller 

 species of our mountain sheep. It is smaller than the white- 



Painted by Carl Rungius. 



PRONG-HORNED ANTELOPE. 



tailed deer of the north, but as large as the southern forms. 

 The largest specimen shown in the Zoological Park herd 

 measured 37>2 inches high at the shoulders, had a head and 

 body length of 47M inches, tail 3J/2 inches, and chest cir- 

 cumference of 35 inches. Its horns were 12M* inches long and 

 \% 1 A inches wide between the tips. The longest horns on 

 record are 20^ inches in length, but any that measure 12 



