'66 Axrii.oi'in.y,. 



3. Oryx leucoryx. (The Oryx.) E.M. 



Horns sleudor, sliglitly arched. Fur wliite, reddish-varied, in 

 winter grey. 



Oryx leueoiyx, Grai/, Cat. Uni/itl. B. 31. p. 107 ; Wolfs Zool. 



SJietcfies, tab. xxiii. 

 Oryx ensicorois, Ileuc/lin, Antilopen, p. 17. 



Hah. North Africa, Nuhia ; East Africa, Sennaar ; West Africa, 

 Senegal. 



4. Oryx beatrix. (The Beatrice.) B.M. 



The horus slender, straight, or only very slightly curved near the 

 tip, annulated nearly to the tip. White ; a spot on the middle of the 

 face, a smaller spot between the base of the horns, a large patch on 

 each check, extended above up to the eyes, and united together be- 

 neath under the throat, the knees and front of the fore and hind legs, 

 and a large spot on the chest dark l)laekish brown; legs to the pos- 

 terior grey-brown ; end of the tail black. 



Orvx beatrix, Grai), P. Z. S. 1857, p. 157, t. 55 ; Ann. ^- Mug. N. H. 

 1857, vol. XX. p." 4G6. 



Hah. Bombay, but probably brought from the shores of the Bed 

 Sea. 



This specimen is not half the size of the Gemsbock from the Cape, 

 and is immediately known from it by the distribution of its colours. 



In form and size it resembles the true Oryx (0. hucori/x) ; but it 

 differs in the straightuess of the horn, the size and form of the cheek- 

 spot and especially in the dark colour of the legs, and the well- 

 marked white ring around the fetlock-joint, just above the hoof. 



The hair is whorled on the middle of the haunches, as in the rest 

 of the genus, and the hairs of the back in front of the withers are 

 directed forwards. 



The animal is intermediate between these species : it has the 

 straight horn of 0. gazella and the plain colour of 0. leucoryx ; but 

 its dark legs and peculiar white feet at once separate it from either. 



The animal was presented to the Society byCapt. John Shepherd, 

 of the India House. It was regarded in the gardens as a half-grown 

 Oriix gazella, and is said to have been brought from Bombay. A 

 pair was shipped from the latter port ; but the female died at sea. 

 The male is now in the collection of the British Museum. 



b. TTtroat slif/htly maned ; ttape not mancd. 



3. ADD AX. 



Horns behind the orbit, slender, elongate, ringed, slightly twisted, 

 sloping in a line with Ihe face. Hoofs semicircular, thin-edged. 

 (Gray, Cat. Ungul. B. M. p. 108, t. 12. f. 5, skuU.) 



1 . Addax nasoraaculata. (The Addax.) B.M. 



White ; forehead and front of face darker ; in winter grey. 



