Zoological Society. 223 



on outside of the limbs above the knees, and tuft of the tail, black. 

 Very young : uniform pale brown, without any dark marks. 



Antilope and Damalis (acronotus) Senegalensis, H. Smith, G.A.K. 

 v. t. 199. f. 3. — Antilope Koba, Children, in Denham and Clapper- 

 ton's Travels, not Erxleben. — Bubalis Koba, Sundevall. — B. lunata, 

 Sundev. Act. Stockh. 1842, 201, 243, not Burchell.— A. Corrigum, 

 Ogilby. — Damalis Senegalensis, Gray, Knows. Menag. 21. t. 21. 



Inhabits W. Africa ; Gambia River, Macarthy's Island ; called 

 Tonga or Yongah by the Joliffs, and Tan Rong by the Mandingoes, 

 Mr. Whitfield. Brit. Mus. Senegal? Sennaar. Mus. Stockholm. 



In Denham and Clapperton's Travels I regarded this species as the 

 Koba of Buffon, and 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 descrip- 

 tions, I find them all longer and much thicker at the base than Buf- 

 fon describes them ; the thinner (a female ?) being 7 and the others 

 9 or 9i inches in circumference, while that which 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 Da- 

 malis Pygarga. They afford very good venison. 



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

 scribed and figured the heads brought home by Messrs. Denham and 

 Clapperton as A. Senegalensis, but they are different from the one 

 so called by Cuvier. Mr. Ogilby, in the * Proceedings of the Zoolo- 

 gical 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, Ruppell, Damalis Senegalensis and Antilope 

 adenota, H. Smith, the Koba of Buffon, and the Antilope Koba or 

 Caarna of Erxleben. 



*** Horns regularly lyrate, parallel at the base,' face of adult 



white. 



3. Damalis Pygarga. The Bonte Boc. 



Purple red, outside of limb dark ; rump and face white : fawn pale 

 yellowish brown. 



Antilope Pygarga, Pallas. — Bonte Boc or Pied Antelope, Gazella 

 Pygarga, Harris, W. A. A. t. 17. — Bubalis Pygarga, Sundev. — 

 A. Dorcas, Pallas. — Antilope (Gazella) Pygarga, H. Smith. — Da- 

 malis Pygarga, Gray, Knows. Menag. 21. t. 20. f. 3, young; t. 22. 

 f. 2 & 3, adult. 



Half-grown, face whitish. 



A. personata, "Wood, Zool. Journ. ii. t. 



Inhabits S. Africa. Brit. Mus. 



Male : bright purple red, face whitish, dark-edged, with a dark- 

 edged white streak to between the horns ; legs whitish, upper and 

 lower part brown varied ; temple and upper part of the throat 

 whitish ; rump to above the tail pure white ; tear-bag round, distinct, 

 moist. The female is similar, but the throat and under part of the 



