BUSHBUCKS, KOODOOS, AND ELANDS 459 



Key to the Species of Taurotragus 



Ears broad and rounded with a black bar on inside of hinder margin; 

 mane on nape black, long and extended, covering 

 whole nape and sides of neck; throat fringed by a 

 narrow mane; a white bar across lower throat; 

 cheeks with two large white spots; fetlocks banded 

 in front by a black bar; horns very long, twice length 

 of head; rostral part of skull short. derbianus 



Ears narrow and pointed, without a dark bar on inside; mane on neck 

 when developed only covering nape and never black 

 in color; no white throat bar or cheek spots; legs uni- 

 formly colored on outer side; horns short, not greatly 

 exceeding length of head; rostral part of skull elon- 

 gate, oryx 



The Giant Eland 



Taurotragus derbianus gigas 



Native Names: Bari (Swaka), tukectuk; Bong Bong, boroku; Ojeng, qual- 

 qual; Djur, adjur; Dor, newarreh. 



Boselaphus gigas Heuglin, 1863, Nova Acta Acad. Leop., vol. XXX, p. 19, 

 pi. I, fig. 2 (horns). 



Range. — So far as known the giant eland is confined 

 to the Bahr-el-Ghazal and Lado Enclave Provinces of the 

 Egyptian Soudan. It is limited to the western drainage of 

 the Bahr-el-Jebel Nile, extending roughly from the vicinity 

 of Rejaf northward to the Bahr-el-Ghazal River and its 

 continuation the Bahr-el-Arab; westward it reaches Dem 

 Zubeir in the Dar Fertit country. The distributiouris lim- 

 ited to the eastward by the Nile and northward by its 

 chief western affluent, the Bahr el Ghazal; while westward 

 the heights of the Nile watershed confine it. In this latter 

 region, however, it extends to the very borders of the water- 

 shed in the Niam-Niam country. 



Throughout this range it is distributed only locally and is 

 so rare that it is a very difficult species to obtain. From the 

 typical race inhabiting Senegal it is separated by a distance of 

 two thousand miles, the whole drainage system of the Niger 

 intervening. The two races are so similar that such isola- 

 tion must be very recent. The case is somewhat paralleled 



