2 CATALOGUE OF UNGULATES 



SUBFAMILY UNCERTAIN. 

 Genus AMMODORC AS. 



Ammoctorcas, Thomas, Proc. Zool. Soc. 1891, p. 207 ; Sclater and 

 Thomas, Book of Antelopes, vol. iii, p. 216, 1898 ; Pocock, Proc. 

 Zool. Soc. 1910, pp. 897 and 917. 



EEPRESENTED by a single species, of the approximate 

 stature of the medium-sized gazelles. General form some- 

 what gazelle-like, but neck slender and elongated, horns 

 (which a*e absent in female) curving backwards and then 

 forwards, much-% the fashion of those of a reedbuck, and 

 i ','' ;iarl 'loag y /reaching nearly to hocks; muzzle hairy; face- 

 glands present and gazelle-like; foot-glands and inguinal 

 glands apparently wanting ; two pairs of teats ; knees with 

 small glandular tufts ; lateral hoofs small ; tail medium. 

 Skull of a gazelle-like type, with shallow lachrymal depres- 

 sions, and the premaxillse reaching the nasals ; the normal 

 three pairs of premolars in each jaw, of which the first are 

 usually small. 



Kestricted to Somaliland. 



In regard to the affinities of this genus, Pocock, after 

 referring to his examination of certain dried skins, proceeds 

 to remark that "superficially the feet showed no signs of 

 pedal glands. Certainly there were none such as exist in 

 the Antilopince ; and I judged that the feet resembled those 

 of ^Epyceros or Kdbus. Also there were two pairs of well- 

 developed teats, and, I could find no evidence of inguinal 

 glands. These features, coupled with the long ' bovine ' tail, 

 and the shape and direction of the horns, which are more 

 cervicaprine [reduncine] tban gazelline, should exclude 

 the genus from the Antilopince. On the other hand, the 

 preorbital glands appear to be like those of Gazella, and the 

 muzzle is hairy, as in that genus. The skull is also very 

 gazelline. 



" These cross-resemblances make Ammodorcas extremely 

 difficult to classify. It has been described as intermediate 

 between Gazella and Lithocranius. This is true of the 

 length of the neck, the structure of the upper lip, and some 

 characters connected with the skull. On the other hand, in 



