50 MAMMALIA. 



TL Nostrils bearded within, beneath, operculated, far apart. 

 Horns on frontal ridge. Legs rather stout. Tail elongate, 

 The Antelopes of the Desert. 



D. Muzzle very depressed, spongy and bristly. The Equine 



Antelopes. 



29. CATOBLEPAS. Horns bent down on the sides, recurved at 



the tip. Nose with crest of recurved hair. Chest maned. 



30. GORGON. Horns like former. Nose smooth. Chest not 



maned. 



E. Muzzle moderately broad, with a small moist muffle. Bovine 



Antelopes. 



31. BOSELAPHUS. Horns on upper edge of frontal bone, sud- 



denly curved back. 



32. DAMALIS. Horns on front of frontal bone, regularly lyrate. 



" The genera of the Antilopece being more numerous are worthy 

 of a more minute examination, considering as I do that it is im- 

 portant to divide these numerous genera into natural groups, 

 more especially as there appears to be a character afforded by 

 the nostrils which has been hitherto overlooked, and which se- 

 parates them into two very distinct and easily recognised sec- 

 tions. This character shows the real position of the Gnu, and at 

 the same time proves that Colonel Hamilton Smith was correct 

 in forming his genus Damalis, though he did not discover the 

 character by which it was best to be denned, and hence placed 

 with it some species that were not truly allied to it ; and it leaves 

 the other Antelopes easily reducible into small groups." Gray, 

 Ann. Sf Mag. N. H. 1849, 231. 



1 . Antelopes of the Fields. Nostrils bald within. 



Antelope of the Fields, A. campestris, Gray, Ann. Sf Mag. N. H. 

 1847, 231; Knowsley Menag. -, Proc. Zool. Soc. 1850, 111. 



A. The True Antelopes. Body light. Limbs slender. Hoof small. 

 Tail short or moderately elongate, and covered with elongated 

 hairs to the base. Horns lyrate or conical. 



True Antelopes (Antilopese verge), Gray, Ann. 4* Mag. N. H. 



1847, 231; Knowsley Menag. ; Proc. Zool. Soc. 1850, 111. 

 Antilopina, part., Sundevall, Pecora. 



