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the family of ruminants, and to approximate them to the daman and 
rhinoceros. 
The teeth found in the plaster-of-paris are of different sizes, but those 
of the middling size occur most frequently. These, M. Cuvier has de- 
monstrated, belonged to two different genera, one of which possessed 
canine teeth, and the other, not. A careful examination showed 
also, that the grinders of these different animals, although seemingly 
similar, possessed decidedly different characters. 
Commencing his inquiries with the genus Pal.eotherium, the 
large ancient animal, with canine teeth, he was enabled to ascertain 
that, as in the rhinoceros and daman, so in this genus, there are seven 
grinders in each side of the lower jaw, the first of which is small, 
compressed, and rather sharp. The others have their outer surface 
formed like two portions of cylinders, except the seventh, which has 
three of these portions. At the base is a projecting line like a collar, 
beneath which is a root to every portion. 
The internal surface of these teeth is, in some respects, the reverse 
of the inner surface. Opposite to each of the crescents is a depression, 
which narrows as it descends : the intervening projections, of course, 
narrowing as they ascend. 
Before the first small grinder, the jaw is void of teeth, or alveoli, for a 
little space, at the end of which space is the canine tooth. It is a simple 
oblique cone, a little bent ; the internal face of which is a little flat, 
and its external face more than half a cone. Its faces are separated 
by two longitudinal ridges, and its bases are girted by the same collar- 
like projection as was observed in the molar teeth. The root is large, 
and penetrates into the jaw nearly as far as the root of the first grinder. 
This canine tooth is not a tusk projecting out of the mouth, as in 
many species of hogs : it is rather concealed by the lips, as in the tapir, 
hippopotamus, and Mexican hog. By the presence of this tooth, this 
animal is separated from the rhinoceros and daman, whilst, by its 
grinders, it is brought near to the tapir and hog. 
