RUMINANTIA. 363 



remain permanently covered by a hairy skin, terminated by 

 a tuft of long stiff bristles. These are not mere out-growths 

 of the frontals, but are independent ossifications placed on 

 the sutures between the frontal and parietal bones. There 

 is also a central horn, if it may be so called, which is of the 



Fig. 652. — Side view of the skull of the Roebuck {Capreolvs caprcea). (After Giebel.) 



nature of an epiphysis, and is placed upon the sagittal 

 suture. It l:)ecomes early anchylosed with the skull, as do 

 ultimately the other two horns. The neck is of extra- 

 ordinary length, but, nevertheless, consists of no more than 

 the normal seven cervical vertebrae. The fore-legs appear to 

 be much longer than the hind-legs, and all are terminated 

 by two toes each, the lateral toes being altogether wanting. 



Fossil species of Giraffe {Camelojjardalis) have been dis- 

 covered in the Tertiary deposits of the Siwalik Hills in India 

 and in the Upper Miocene of Attica ; and a species has also 

 been described from France. This last, however, would 

 seem to be referable to the genus Hclladotheriwm, founded 

 for the reception of some singular fossils from the Upper 

 Miocene Tertiary of Attica. In this remarkable genus there 

 appear to have been no horns, and the teeth present certain 

 resemblances to those of the Antelopes. N"o member of the 

 Camdopardalidce has as yet been discovered in either North 

 or South America, so that this peculiar Euminant type 

 would appear to be wholly confined to the Old World. 



e. Cavicornia. — The last family of the Euminants is that 



