87 
found in the caverns of Oreston. 
two permanent ones which had not sufficiently advanced in 
their growth to have protruded through the gum, but are 
still enclosed within their alveolar cavities. (Fig. 7.) Also 
part of the right side of the lower jaw of an adult animal, 
with the teeth in a good state of preservation. This specimen 
was discovered in the cavern marked B, in Plate VI. 
There are likewise detached specimens of the canine teeth 
and molares of individuals of very large size : and the poste- 
rior part of a skull of uncommon magnitude, which cor- 
responds most exactly in form with that of a hyaena, and 
must undoubtedly have belonged to that animal, but mea- 
sures twice as much from every determinate point to another, 
as a recent full grown hyaena's skull. (Fig. 8.) 
Of the wolf, there are some bones of several individuals 
which were found in the cavern marked E, Plate I. There 
are two large portions of the lower jaw, containing nearly all 
the teeth in good preservation, and perfectly agreeing in 
size, in form, and arrangement, with those of a full grown 
recent animal. (Fig. 10.) 
The os humeri also is perfectly similar, and has the rounded 
aperture through its lower extremity to receive the curved 
process of the olecranon. 
A few very small fragments of shell were found in the 
situation denoted by the letter H. Plate VII, apparently allied 
to the genus ostrea ; but they are too minute to admit of even 
that being positively ascertained. A single valve would pro- 
duce more than all the fragments in question : when applied 
to the tongue they do not adhere, and their pearly surfaces 
have all the compactness and lustre of a recent shell. 
