270 



EASTERN ETHIOPIA 



XXI 



In a fiolit these horns aie as 



inches in the Beisa oryx. 

 formidable as bayonets. 



The horns of the reedbuck stand up almost vertically 

 from the head, and their tips are turned forwards like a 

 hook. The duikers have horns which are dainty and 

 straight, though their surfaces are annulated ; they 

 hardly exceed in thickness the handle of a pen. The 

 horns of the gazelles and the cobs assume the shape 



The Skull of a Roan Antelope .sliowing the mode in wliieh the 

 horn cores arise from the frontal hone above the orbits. 

 (Museum, Roj'al College of Surgeons, Knglaml.) 



of a lyre (lyrate) : whilst those of the roan antelope 

 form a graceful backward curve. 



The horns of the colis diverge from each other as they 

 leave the skull and converge towards the tips : these 

 horns are also curved in such a way that the concavity 

 is directed forwards and upwards. In the grandest cob, 

 the water-buck, the horns often attain a length of thirty 

 inches. 



The horns of the roan antelope rise from the frontal 

 bones immediately above the or])its and arch ba(dv- 



