CHGROPOTAMUS CUVIERI. 415 
which indicate a nearer approximation in the extinct genus 
to the carnivorous type; and it is of great interest to find 
that the ramus of the jaw, so fortunately extracted in an 
almost entire state from the Isle of Wight strata, exhibits 
a structure in the prolongation backwards of the angle of 
the jaw, which has hitherto been found to characterize, 
almost exclusively, the carnivorous Mammalia. Certain it 
is that no known pachydermal, or other ungulate species 
of Mammal presents this conformation. The figure (163 
precludes the necessity of a detailed description of this 
process ; it is more compressed and deeper than in the 
Bear, Dog or Cat tribe, and is not bent inwards in the 
way which peculiarly characterizes the marsupial jaws, and 
which so neatly distinguishes the Stonesfield Phascolo- 
there. The condyloid process in the Charopotamus is 
raised higher above the angle of the jaw than in the true 
Carnivora, and it is less convex than in the Hog or Peceari. 
In the size of the coronoid process the Peccari exceeds the 
true Hogs; and in that respect, as well as in the form and 
position of its canine teeth, makes a nearer approach to the 
carnivorous type; but in the Ohwropotamus the coronoid 
process is still more developed in correspondence with the 
greater bulk of the temporal muscle, the size of which is 
indicated by the span of the zygomatic arches. In the 
wavy outline of the inferior border of the lower jaw, the 
Peccari alone, amongst the Hog tribe, resembles the Charo- 
potamus. The two detached molars of the lower jaw de- 
scribed by Cuvier, and which he compares with the third 
and fourth molars of the Babyroussa, are the fourth and 
fifth, or penultimate, m 2, and antepenultimate, m 1, 
molars, counting backwards, of the Charopotamus, and 
correspond with the penultimate and antepenultimate 
grinders of the Peccari. The last molar of the lower jaw, 
