57^ E. Home's Account of the 
which I may mention the pike as an example; but in them the 
teeth are not conical, nor does the lower jaw extend so far 
back under the skull. The vertebrae and ribs are not unlike 
those of the pike, but the spinous processes are a great deal 
shorter. 
The jaws and scapulae, both in shape and size, are more like 
those of the crocodile than of any fishes at present known, 
and the three small flat bones near the broken portion of the 
scapula, have a resemblance to those of the tarsus of a species 
of turtle. 
These particulars, in which the bones of this animal differ 
from those of fishes, are sufficient to shew, that although the 
mode of its progressive motion has induced me to place it in 
that class, I by no means consider it as wholly a fish, when 
compared with other fishes, but rather view it in a similar light 
to those animals met with in New South Wales, which appear 
to be so many deviations from ordinary structure, for the 
purpose of making intermediate connecting links, to unite in 
the closest manner the classes of which the great chain of 
animated beings is composed. 
EXPLANATION OF THE PLATES. 
Plate XVII. A side view of the skull and the two jaws. 
a a. The blue lias in which the skull was imbedded. 
b b. The bony plates in the sclerotic coat of the eye. 
c c. The bony plates of the sclerotic coat of the opposite 
eye forced through the bones of the nose, and only partially 
exposed. 
