238 MR. R. LYDEKKER ON 



represented by the cow and young bull from the Congo, figured 

 on page 321 of Brehm's 'Tierleben,' ed. 3, Saugetiere, vol. iii. 

 p. 321 *, which are described as being wholly yellowish, with the 

 exception of the brownish limbs. A full-grown bull of this race 

 I have never seen. 



The ground having been thus cleared, it is now practicable to 

 discuss Mr. Hunt's specimens, as represented by the mounted 

 heads of an adult bull and cow. In the former of these (text- 

 fig. 43) the general colour of the skin and hair is best described 

 as dusky, since it is not anything like black. Compared with 

 the aforesaid head of B. c. planiceros in the Museum, it shows 

 a. much smaller amount of bright orange tawny on the throat and 

 upper pai^t of the chest, and no upward extension of this on each 

 side of the head towards a similar patch at the root of the ear, 

 this patch being absent in the South ISTigerian head, in which 

 the general colour is also lighter. The fringe of long hair on 

 the upper edge of the ear is reddish orange, but that on the 

 opposite margin mainly dark. The horns, in addition to being 

 considerably smaller, difier from those of the male of the Gambian 

 Buffalo in that their front surface slopes regularly backwards 

 almost in one plane, instead of cvirving at first backwards, then 

 forwards, and finally backwards. The following are the dimen- 

 sions, in inches, of the Gambian and the South Nigei-ian horns, 

 together with those of the Alexander-Gosling skull fi'om the 

 TJbangui referred to the Lake Chad race : — 



Lake Chad. Gambian. S. Nigerian. 



Outside length 25^ 27^ 20^ 



Palm-breadth 6| 7 k 7} 



Tip-to-tip interval 11^ 2l| 12 



In the head of the South Nigerian cow (text-fig. 44) the colour 

 is dull tawny, with a dusky tinge on the lower part of the face, 

 but no bright orange on the throat ; the fringe being bright on 

 the upper margin of the ear, as well as in two flecks lower down, 

 but elsewhere dark. The front surface of the horns lies wholly 

 in one plane, instead of curving backwards as in the case of 

 B. c. hrachyceros. The following are the measurements of the 

 horns in the larger of the two type specimens of the latter and of 

 the specimen now under consideration : — 



Lake Chad. S. Nigerian. 



Outside length 17| 12 



Palm-breadth C 3| 



Tip-to-tip intei-val 7 9 



The foregoing measurements of the horns of the South 

 Nigerian bull and cow agree, respectively, very fairly with those 

 of specimens killed by Major A. J. Arnold in the Lokoja district 



* The figure is reproduced in the ' Koyal Natural History',' vol. ii. p. 203. 



