150 CATALOGUE OF UNGULATES 



B. Addax nasomaculatus addax. 



Antilope addax, Cretszchmar, vide supra, p. 147. 



Addax nasomaculatus addax, LydeJcker, Field, vol. cxi, p. 107, 1908, 

 Game Animals of Africa, p. 303, 1908. 



Typical locality Dongola. 



Following the precedent of Sclater and Thomas in 

 the cases of Gazella leploceros and Oryx algazel (supra, 

 pp. 69 and 129), the addax of the Eastern Sudan may be 

 regarded as racially distinct from the typical addax of north- 

 western Africa, even if its distinctive features are not fully 

 known. It has been suggested that in the Sudan race the 

 winter coat is shorter than in the Tunisian animal, and that 

 there is less white in the neighbourhood of the eye. 



6. 4. 23. 1. Skin, immature. North -western Kordofan. 

 Presented ly A. L. Butler, Esq., 1906. 



8. 1. 3. 1. Skin. Two hundred miles south-west of 

 Dongola. Presented by Capt. P. E. Vaughan, 1908. 



10. 6. 28. 1. Skull, with horns, and skin. South-west 

 of Dongola. Presented by G. Blaine, Esq., 1910. 



SUBFAMILY xvi. TRAGELAPHIN^. 



Large or medium-sized antelopes with the horns, which, 

 except in two genera, are normally restricted to the males, 

 usually in the form of long, upwardly directed heteronymous 

 spirals, devoid of transverse ridges, but almost always 

 furnished with a longitudinal keel on the front aspect. 

 Muzzle large and naked ; face-glands and lachrymal depres- 

 sions present or absent ; inguinal glands sometimes present ; 

 true foot-glands wanting, but in one genus a pair of glands 

 in hind lateral, or false, hoofs, these hoofs being always well 

 developed in both limbs; general foot-structure practically 

 the same as in Bovince (vol. i) ; two pairs of teats ; tail 

 medium and thickly haired throughout, or longer and 

 terminally tufted; markings, when fully developed, in the 

 shape of a white nasal chevron, spots on cheeks, longitudinal 

 bands and transverse stripes on body, spots on haunches, and 

 patches on limbs; these markings being present in the 



