MAMMALIA. 127 



A. Gazella Korrigum, Lesson, Nov. Tab. R. A. 176. 

 Alcelaphus Senegalensis, Turner, P. Z. S. 1848. 

 Hob. West Africa; Gambia River, Macarthy's Island, Mr. 

 Whitfield, called Tonga ; Senegal ; Senaar. Mus. Stockholm. 



Young. Gambia. Presented by the Earl of Derby. 



OSTEOLOGY. 



Skull and horns. Bornou. Presented by Capt. Clapperton, 

 R.N., and Major Denham. (The specimen figured by Col. H. 

 Smith, and noticed by Mr. Children.) 



Skull and horns. Bornou. Presented by Capt. Clapperton, 

 R.N., and Major Denham. 



Skull. Gambia. Presented by the Earl of Derby. 



Mr. Whitfield informs me this species is found on Macarthy's 

 Island, on the Gambia; they afford very good venison; are 

 called Yonga or Yongah by the loliffs, and Tan Hong by the 

 Mandingoes. 



In Denham <^r Clapperton's Travels I regarded this species as 

 the Koba of Buff on, and Colonel H. Smith and Dr. Sundevall 

 are of the same opinion : but on comparing the six pairs of horns 

 of this species which I have been able to examine with Buffon' s 

 figure and descriptions, I find them all longer and much thicker 

 at the base than Buffon describes them ; the thinner specimen (a 

 female?) being 7 and the others 9 or !) inches in circumference, 

 while that Buffon described is only 5 inches. The rings are also 

 more elevated, and reach nearer to the top than in Buffon' s 

 figure. All the characters lead me to believe that the horns figured 

 as those of the Koba by Buffon belong to Damalis Pygarga. 



Colonel Hamilton Smith, in Griffith's Animal Kingdom, de- 

 scribed and figured the heads brought home by Messrs. Denham 

 and Clapperton as Antilope Senegalensis, but they are different 

 from the one so called by Cuvier. Mr. Ogilby, in the Proceed- 

 ings of the Zoological Society (1826, 103), proposed to call these 

 heads A. Corrigum. 



Under the name of Antilope Koba, Schinz (Syn. Mam. ii. 407) 

 combines the A. defassa, Riippell, Damalis Senegalensis and 

 Antilope adenota, H. Smith, the Koba of Buffon, and the Anti- 

 lope Koba or Caama of Erxleben. 



*** Horns regularly lyrate, parallel at the base. Face of the 

 adult white. 



3. DAMALIS PYGARGA. The NUNNI or BONTE HOC. 



Purple red. Outer, side of the limbs darker. Streak between 

 horns, face, and rump above the tail, white. Temple and upper 



