ORVGIN^E 131 



Society, and probably obtained from the shores of the 

 Persian Gulf. Type of 0. leatrix. 



Purchased (Zoological Society), 1857. 



72. 11. 18. 1. Skin, mounted, and skeleton. From an 



animal obtained by Col. Pelly, then British Eesident at 



Bushire, Persian Gulf, and presented by J. Gwyn Jeffreys, 



Esq., to the Zoological Society. 



Purchased (Zoological Society), 1872. 

 90. 12. 20. 1. Skeleton, with horns, immature female. 

 Head of Persian Gulf; collected by B. T. Ffinch, Esq. 



Purchased, 1890. 



94. 3. 9. 10. Skull, with horns, and skin, immature 

 female. Adam, Oman, S. Arabia. 



Presented ly Lieut. -Col. A. S. G. Jayakar, 1894. 

 97. 1. 14. 10. Skeleton, horns, and skin. Same locality. 



Same donor, 1897. 

 7. 10. 23. 1. Skin, mounted. Mesopotamian Desert. 



Presented ly P. B. Vander Byl, Esq., 1907. 



II. Genus HIPPOTRAGUS. 



Egocerus, Desmarest, Mammalogie, vol. ii, p. 475, 1822, nee ^Egoceros, 

 Pallas. 



Aigocerus, Hamilton Smith, Griffith's Animal Kingdom, vol. v, 

 p. 324, 1827, nee JEgoceros, Pallas. 



Ozanna, Eeichenbach, Saugethiere, vol. iii, p. 126, 1845. 



Hippotragus, Sundevall, K. SvensTca Vet.-Ak. Handl. 1844, p. 196, 

 1846 ; Sclater and Thomas, Book of Antelopes, vol. iv, p. 3, 

 1899 ; Pococlc, Proc. Zool. Soc. 1910, p. 909. 



Size large ; general form taller and more slender than in 

 preceding genus. Horns medium or very long, heavily 

 ridged, cylindrical or compressed, and rising nearly vertically 

 above eye-sockets, so as to form an obtuse angle with plane 

 of face, after which they sweep backwards in a bold, 

 scimetar-like curve, with a comparatively slight but regular 

 divergence; glandular tufts of white hairs below eyes. 

 Skull closely resembling that of Oryx in general characters, 

 but the lachrymal fissures frequently obliterated. 



The range comprises the greater portion of Ethiopian 

 Africa, exclusive of the equatorial forest-zone. 



K 2 



