ANCIENT AND EXTINCT BRITISH QUADRUPEDS, 143 
that, but for the peculiar construction of the grinders and the 
curling tusks of the Mammoth, it would be difficult to distinguish 
them. Allowing, therefore, for influences before referred to, we 
may assume that the naked skin and other differences observable 
in the Asiatic Elephant may be due to conditions under which the 
animal had lived for long ages; indeed, there appears to be a 
growing belief among naturalists that the Mammoth might have 
been the progenitor of the Elephant of Asia. In the case of the 
Ancient Elephant there is also an agreement, though less marked, 
in its teeth and bones with those of the African Elephant; but we 
must wait for further discoveries in the soils and caverns of 
Southern Europe and Asia before any more exact relationships 
between the living and extinct species can be determined. 
Tue Rurnocerosss that inhabited Britain possessed characters 
which in the opinion of many naturalists warrant their division 
into two or three species, all of which carried two horns, like the 
animals now living in Sumatra and Africa, as distinguished from 
other species. 
THE TICHORHINE Two-HORNED R#INOCEROS—so named from 
having a bony septum to its nose—was very plentifully distributed 
over England after the glacial period. It is the same animal which 
the Russian naturalist Pallas found frozen and entire, in 1771, in the 
sands of the river Viloni, in Siberia. The body was clad in long 
shaggy hair, and the flesh and skin were for the most part pre- 
served, from constantly lying in frozen soil—how long, who is to 
say? At all events, no native traditions speak of the animal. Its 
remains (chiefly teeth) have turned up in about sixty different 
localities in England, and are usually associated, as in Siberia, 
with remains of the equally hirsute Mammoth. Its nearest living 
ally is the African or Two-horned Rhinoceros, which stands nearly 
five feet in height, with a length of eleven feet. To judge by the 
measurements of the individual discovered by Pallas, the above is 
a somewhat smaller animal than the extinct Tichorhine species. 
Another fossil species (or variety, as some consider it) has been 
named the LEPTORHINE Tw0o-HORNED RHINOCEROS, and is distin- 
guished from the last-named by a more slender body, as evidenced 
by its bones and teeth. The third form, named the MEGARHINE 
Two-HORNED RHINOCEROS, is distinguished by the presence of 
