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pachydermata : the gnawers ( rosores ), the ruminants, the solipeds, 
all have the intervening space. The ordinary carnivorous animals, 
and the quadrumanes, have all large canine teeth. There are only the 
hedgehog and the shrew which manifest any analogy with this animal, 
with respect to their teeth. But their lateral incisors are so obliquely 
sharp, and their canine or first molar teeth are so like incisive, that, 
without speaking of the enormous difference of size, the number of 
their grinders, and the form of the jaws, are quite different. It 
cannot, however, be denied, that there exists some resemblance in 
the shape of the grinders themselves. 
In the lower jaw of this animal, the great width of its rising branch, 
and that convexity of its posterior edge, which is hardly ever seen but 
in the daman and tapir, are observable. The coronoid process is large 
and hooked, and rises very considerably above the condyle. 
The teeth of the upper jaw appear to correspond with those of the 
lower jaw : there not being any canine tooth, nor any space between 
the incisive and the grinders. The greatest correspondence between 
the teeth of this animal and those of the palceotherium, is to be found 
in the three last grinders, whilst the others essentially differ. 
The size of the most common species of this animal, he conjectures 
to have rather exceeded that of the wild boar. Besides the remains 
of this species, he found those which were evidently of a smaller spe- 
cies, about the size of a small sheep, which he named A. medium. 
He discovered the remains also of a still smaller species, in which the 
hinder part of the jaw, and particularly the coronoid apophysis, ap- 
peared to differ from that of the former species. This species, which 
seems to be very rare, he distinguishes as A. minus. The examina- 
tion of some remains of another animal, which must have been about 
the size of a rabbit, led him to suspect, but did not allow him to de- 
termine, that there had existed a smaller species, to which he would 
have given the name of A. minimus. 
Having determined the existence of three or four species in this genus, 
