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 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 3714 inches high at the sheulders, had a head and 
body length of 4734 inches, tail 3!¢ inches, and chest cir- 
cumference of 35 inches. Its horns were 12! inches long and 
12% inches wide between the tips. The longest horns on 
record are 20!% inches in length, but any that measure 12 
