284 
(from my own experience principally from the upper portion), and 
the post-glacial deposits underlying the sea along our eastern coast. 
E. [Euelephas] primigenius (Cuvier).— This species which is 
commonly called the mammoth was first specifically determined by 
Cuvier ; and in fact, nearly all the fossil remains of Elephas were 
at first attributed to this species, until Dr. Falconer’s remarkable 
discoveries in the Sivalik Hills in India. The distinctive characters 
of this species may be expressed as follows : — the great narrowness 
or compression and approximation of the crown ridges in the molar 
teeth, involving the largest number of plates known in the same 
length of crown. The tenuity of and absence of crimping in the 
enamel plates. The greater width of the molar crowns than of any 
other species in the same subgenus, and the strongly marked cur- 
vature of the tusks. 
This species had a very wide geographical range. Its remains 
have been found in North America, Arctic Siberia, the Russian 
Steppes, Germany, France, England, and central Italy. 
The deposits in which it has been found in Norfolk are, the 
various post-glacial deposits spread over the county and under-lying 
the German Ocean. This species never occurs in the forest-bed. 
Order UNGULATA. 
Family EHINOCERATIDEE. 
Genus RHINOCEROS. 
R. tichorhinus (Fischer and Cuvier).— The chief point by which 
the four species of rhinoceroses which lived in Pliocene and Post- 
Pliocene times, were specifically determined, was the existence or 
non-existence of the nasal septum, that is, whether the nasal 
apertures were divided or not by a plate of bone. Rhinoceros 
tichorhinus had a complete bony nasal septum, as the name 
expresses. The species was a two-horned one, and fully as large 
as the existing Indian species. The enamel which is one of the 
elements of the molar teeth, is very thick and more rugose than in 
other species of the same family. 
This species is only found in Norfolk in Pleistocene deposits, and 
is strictly post-glacial. The skull in the celebrated collection 
formed by the late Mr. Owles, of Yarmouth, and now deposited 
