ioi6 



THE UNGULATES, OR HOOFED MAMMALS 



bensis} belong to this group. L,astly , we have the bearded pig (S. barbatus) of Borneo, 

 which is markedly distinct from all the others, having a fringe of long hairs on the 

 cheeks, an extremely-elongated skull (shown in the figure on p. 1009), and the last 

 molar tooth in the lower jaw relatively short, and of simple structure. The great 

 elongation of the skull is shown by the circumstance that the first cheek-tooth of the 

 upper jaw is separated by a considerable interval from the tusk, whereas in other 

 species the two are placed close together. 



Since there is nothing in the habits of these pigs to distinguish them from the 

 Indian wild pig, we may pass on to the consideration of some of the domesticated 

 breeds of swine. It may, however, be mentioned that with the exception of the 





HARRISON PIG. 



(One-eighteenth natural size.) 



European wild boar, which ranges into Algeria and the adjacent districts, the only 

 typical representative of the genus found in Africa is the Sennar pig (S. sennaren- 

 sis) of the northeastern regions of that continent. 



Domestic Much discussion has taken P^ce as to the origin of the numerous 



Swine domesticated breeds of swine, and very different views on this subject 



have been expressed by different writers; some urging that certain of 

 the earlier races found in Europe had an eastern origin, while others regard the 

 whole of them as descended directly from the European wild boar. The earliest evi- 

 dence of the existence of domesticated swine in Europe is afforded by remains found 

 on the sites of the prehistoric lake dwellings of Switzerland. These were regarded 



