270 EASTERN ETHIOPIA xxi 



inches in the Beisa oryx. In a fight these horns are as 

 formidable as bayonets. 



The horns of the Feedback 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 showing the mode in which the 

 horn cores arise from the frontal bone above the orbits. 

 (Museum, Royal College of Surgeons, England.) 



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

 form a graceful backward curve. 



The horns of the cobs 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 orbits and arch back- 



