TRAGELAPHIN^: 211 



30 to 37 inches in length in a straight line, with a basal 

 girth of from 11 to 16, and a tip-to-tip interval ranging from 

 7J to 27 inches. Female horns may be abnormally long, 

 with but slight development of the spiral twist. 



The range extends from Cape Colony to the Kenia 

 district of British East Africa on the east, and to Angola on 

 the west ; the typical southern form being apparently almost 

 extinct. 



The four better known races are distinguishable as 

 follows : 



A. Body not striped T. o. oryx. 



B. Body striped. 



a. Backs of pasterns whitish. 



a'. Typically no white suborbital streak T. o. living stonei. 

 b 1 . Typically a white suborbital streak T. o. selousi. 



b. Backs of pasterns black T. o. patter sonianus. 



The characters on which the other two named races are 

 based are given in the sequel. 



A. Taurotragus oryx oryx. 



Taurotragus oryx typicus, LydeTcJcer, Great and Small Game of Africa, 

 p. 421, 1899; Sclater and Thomas, Book of Antelopes, vol. iv, 

 p. 195, 1900 ; Ward, Records of Big Game, ed. 6, p. 328, 1910, 

 ed. 7, p. 325, 1914. 



Taurotragus oryx oryx, LydekJcer, Novit. Zool. vol. xiv, p. 324, 1907. 



Typical locality South Africa. 



Whole colour uniformly tawny, white body-stripes and 

 suborbital streaks, and dark knee-bands and black on 

 posterior aspect of pasterns being, typically, absent. 

 647, e. Skeleton, female, immature. S. Africa. 



Presented by the Earl of Derby, about 1842. 

 647, h. Frontlet and horns, young. S. Africa. 



Same history. 



42. 12. 6. 14 (647, q). Skull, with horns, and head-skin. 

 S. Africa ; collected by Mr. Burke. Same donor, 1842. 



42. 12. 6. 15 (647, r). Skull, with horns, and head- 

 skin, female. Same locality and collector. Same history. 

 647, j. Frontlet and horns, female. Algoa Bay. 



Presented by C. Wemyss, Esq. 

 p 2 



