HYRAXES, ELEPHANTS, AND UNGULATES 299 



locality, but seem to be alike descendants of a group of 

 extinct Camel-like ancestors formerly found in North 

 America. The two species of Gamelus now living are the 

 One-humped Camel (C. dromedarius) and the Two-humped 

 or Bactrian Camel (C. bactrianus) both of which are now 

 best known in a domestic state. Indeed the original home 

 of the One-humped Camel has not yet been certainly 

 ascertained, although it is usually supposed to have been 

 Arabia, where wild Camels are said to have existed about 

 the commencement of the present epoch. We may there- 

 fore, perhaps, class the Arabian Camel as an Ethiopian 

 type. But the true home of the Bactrian or Two-humped 

 Camel is certainly the great deserts of Central Asia, where 

 specimens of the wild species have been obtained both by 

 Russian and English explorers. We may therefore place 

 the Bactrian Camel as a Pakearctic animal. 



The two wild species of Lama — the Huanaco and 

 Vicuna — are found only in the temperate portions of the 

 Neotropical Region ; from one or both of these are 

 descended the Lamas and Alpacas of domesticity. The 

 Lamas may consequently be classed as an indigenous 

 form of the Neotropical Region. 



Section XIII. — Distribution of Swine-like 

 Ungulates 



At the end of the great Ungulate series we come to the 

 Swine or Swine-like mammals, of which the existing forms 

 are usually assigned to four separate families, the 

 Hippopotamuses, Wart-Hogs, true Swine, and Peccaries. 

 Most of these forms, except the Swine, have in these days 



