124 CATALOGUK OF UNGULATES 



upper segment of limbs whitish ; a few dark bars on throat. 

 Horns yellowish brown, darkening with age. Good horns 

 measm-e from 20 to 28 J inches in length, and from 10^ 

 to llj in girth. 



The range extends from the Atlas to the Egyptian Sudan, 

 its southern limits including the desert south of Biskra and 

 the mountains in the neighbourhood of Khartum. 



The four geographical races may be briefly diagnosed 

 as follows : — 



A. Horns scarcely, if at all, depressed ; an in- 



distinct dark median face-stripe A. lervia lervia. 



B. Horns markedly depressed ; no face-stripe. 



a. General colour brownish grey ; beard 



blackish A. lervia hlainei. 



h. General colour sandy rufous. 



h' . General colour warm sandy rufous ; 



no whitish subauricular patch.... A. lervia ornata. 

 c' . General colour pale sandy rufous; 



a white subauricular patch A. lervia sahariensis. 



A, — Ammotragus lervia lervia. 



Ovis lervia lervia, BotJischild, Novif. Zool. vol. xx, pt. 2, 1913. 



Typical locality Mauretania. 



Horns scarcely, if at all, depressed ; an indistinct dark 

 median face-stripe. 



The distributional area includes a large portion of 

 Algeria. 



50. 11. 22. 3. Skin, mounted. North Africa. 



Presented iy the Zoological Society, 1850. 

 50. 12. 2. 20. Skeleton, wanting skull, associated with 

 preceding. Same history. 



48. 8. 21. 129. Skin, immature. Menagerie specimen. 



Presented hy J. Baker, Esq., 1848. 

 54. 12. 6. 3. Skin, immature. Menagerie specimen. 



Presented hy the Zoological Society, 1854. 

 9 J. 6. 7. 1. Skin, mounted. Amarkadu Mountains, near 

 Biskra, Algerian Sahara. 



Presented iy Sir U. G. Loder, Bart., 1895. 



2. 11. 4. 82. Skull, with horns, and skin. Wadi 



Agarilj, Tripoli. Presented hy J. I. S. Whitaker, Esq., 1902. 



