198 THE PllONG-HORNED ANTELOPE. 
iiiainniiB two ; stature lai’ge ; shoulders higher than 
the croup.” The animals composing the subgenus 
are found in central parts of South Africa, inhabiting 
the borders of the deserts, living in small herds. 
Our information regarding any of them is by no means 
ample. They are all of large size. Among the 
best known may be mentioned the Blauw-bock of the 
Cape colonists, A. leucophaa, now a very rare animal, 
and extirpated from the colony. It is above four 
feet high at the shoulders. At a little distance it ap- 
pears of a silvery bluish-gray, occasioned by long 
coarse hairs sparingly scattered over a deep black 
skin. Another, the Roan Antelope, A. equina, ex- 
ceeds the preceding in height, and the general colour 
is grey, mixed with a reddish tint. It inhabits the 
elevated plains in the vicinity of Latakoo. 
A third animal allied to the above we have select- 
ed to illustrate this form ; it is 
