410 HIPPOPOTAMUS. 
a water-worn tusk of this kind from the beach at Cromer, 
the bases of certain of these cones at intervals of about 
an inch form slightly projecting ridges, encircling the tusk 
rather obliquely, and causing an undulation of the surface. 
The canines are wanting in the lower jaw from Cromer ; 
but a portion of an inferior canine of a larger specimen of 
the Hippopotamus major, in the Museum of Miss Gurney, 
measures three inches and a half in diameter across the 
flattened side: fig. 161 gives a reduced view of the. 
inner side of the extremity of a lower tusk from the fresh- 
water deposits at Walton, of nearly equal dimensions. 
Mr. Brown of Stanway possesses a portion of a smaller 
tusk of the fossil Hippopotamus, from the same formation 
and locality. 
In the Norwich Museum there is a tusk of the Hippopo- 
tamus major, which was dredged up from the oyster-bank 
at Happisburgh ; it is black and heavy, being penetrated 
by iron. In the Museum of the Yorkshire Philosophical 
Society there is a molar tooth of the Hippopotamus ma- 
jor, from Overton, near York. In the collection of Mr. 
Saull, F.G.S., are preserved some fine portions of the under 
jaw, and several detached teeth of the Hippopotamus ma- 
jor from the post-pliocene fresh-water beds at Alconbury, 
near Huntingdon. 
Remains of the extinct Hippopotamus have been found 
in other limestone caves in England than that at Kark- 
dale; as, for example, at Kent’s Hole, Torquay. Se- 
veral teeth of the Hippopotamus were found, associated 
with Mammoth, Rhinoceros, Aurochs, Ox, Hyzena, and 
Bear, in the cavern at Durdham Down, recently described 
by Mr. Stutchbury. 
With respect to the bones of the extremities of the 
Hippopotamus, the femur, which equals im size that of the 
