382 RHINOCEROS. 



superficial vegetable mould. The remains of the Rhi- 

 noceroses, with associated Mammoths and Aurochs, were 

 discovered in the deepest part of the basin ; but in the 

 space of three hundred yards towards the north, it rises 

 to the surface and is capped by the gravel. Mr. Brown, 

 in concluding his account of the ancient lacustrine basin, 

 which formed the grave of the huge pachyderms and 

 ruminants that once roamed upon its banks, or wallowed 

 in its muddy shallows, says, " As the bones and teeth 

 which I have now much pleasure in sending you, were all 

 collected by myself, I can vouch for their being marked 

 correctly, as to locality." 



The habits of the less robust and less formidably armed 

 species no doubt differed from those of the tichorhine 

 Rhinoceros, which is more extensively distributed over 

 England ; some Naturalists have recognized different ha- 

 bits in the three or four species of Rhinoceros now living 

 in Africa, and which differ from each other in form and 

 structure much less than did the extinct leptorhine and 

 tichorhine Rhinoceroses of Europe. 



Although the number of species, now extinct, which 

 ranged over the Europseo- Asiatic continent equalled or 

 surpassed that of the existing species of Rhinoceros, no 

 fossil remains referable to this genus have ever been dis- 

 covered in America or Australia. This peculiar form of 

 horned Pachyderm appears to have been confined, from, 

 its first introduction into our planet, to the same great 

 natural division of the dry land the Old World of the 

 geographers to which the existing representatives of that 

 form are still peculiar. 



