Zoological Society. 131 



* Knees with tufts ; back and rump broion, tent white. 



t Lower part of side with a dark oblique streak ; feet with a tuft 

 of black hair beneath. 



I. Gazella Dorcas. The Gazelle. 



Fur rather elongate and harsh, grey hrown ; outside of fore legs, 

 broad oblique streak along the side, edge of anal disc, front of face 

 and face-streak, dark brown ; face-streak, throat, chest, bellv, inside 

 of thigh and anal disc, white ; tuft at under side of feet and end of tail 

 black ; knee-tufts blackish ; young, back and side-streak rather paler, 



Capra Dorcas, Linn. — Antilope Dorcas, Pallas ; Licht. 3. t. 5. — 

 A. Gazella, V&VLas.— Gazella Kevella, H. Smith, $ .—G. Corinna, 

 H. Smith, ? .—Gazelle, Buffon, H. X. xii. t. 22-25. ^ .—Kevel, Buf- 

 fon, H. N. xii. t. 26. ^J. not F. Cuvier.— CoW««e, Buffon, H. N. xii. 

 t. 27. ? . t. 30 (not F. Cuvier) ; Cuvier, Menag. Mus. t. .—Kevel 

 gris, F. Cuvier, Mam. Lithog. t. 3. — Antilope Cora, H. Smith. — 

 A. Arabica, Hemprich and Ehrenb. S%-mb. Phys. t. 5 ; Licht. Saugth. 

 t. 6.—^. Cueieri, Ogilby, Proc. Z. S." 1840, 35 ; Frazer, Zool. Typ. t. 



Far. Nose with a dark spot or streak. 



Far. Larger, legs thicker. 



Gazella Dorcas, var. Gray, Knowsley Menag. t. 3. 



Inhabits N. Africa; shore of Red Sea; Mogador (TFillshire). 



The Earl of Derby has specimens which he calls Gazella vera, 

 figured Knowsley Menag. t. 3 ; they are rather larger, greyer, and 

 the legs are much thicker and heavier than the specimens from the 

 shore of the Red Sea. The fur is similar, but not quite so long on 

 the xmder side of the neck. The Kevel gris (F. Cuvier, Mam. Lith.) 

 well represents this variety. 



The A. Cuvier i of Ogilby, from Morocco, is a much larger animal 

 than the common G. Dorcas, but agrees with it in other characters, 

 except, it is said, in having longer ears. 



M. F. Cuvier (Mam. Lithog. \'ii. t. 8. ? .) has figured and described 

 an Antelope from Sennaar under the name A. leptoceros, which he 

 says is very like A. Dorcas, but has larger horns, those of the males 

 being twice and of the females half as long again as the head. The 

 horns vary greatly in length in our specimens. 



ft Upper part of sides with a pale streak. 



2. Gazella Isabella. The Isabella Gazelle. 



Fur short, very soft ; pale yellowish brown, with a broad, rather 

 paler oblique streak on the upper part of the side ; knee-tufts, front 

 of face and lower face-streak, darker yellow brown ; upper face-streak, 

 chest, back edge of tarsus, imder side of feet, inside of limbs, belly 

 and vent, white ; tail black. Female, horns very slender, longer than 

 the head. Young, paler, the lower part of the'sides rather darker. 



Gazella Isabella, Gray, Ann. and Mag. Nat. Hist. 1846. — Anti- 

 lope Iridis {Die Iris Antelope), Licht, — A. Dorcas, Licht. Darstell. 

 t, 5. — A. Dorcas, var. a. Sundevall. 



Inhabits N. Africa ; Egypt {J. Burton, Esq.), Kordofan {Sunder.). 



This species is easily known from the foregoing by the softness and 

 fineness of the fur, and the lower side-streak being of the same colour 



9* 



