URsIDz. 109 
Dentition of Bear. 
trenchant shape of the cats, which is also, to a modified extent, 
possessed by the dogs, of which 
the last two molars have, instead 
of cutting edges, a grinding sur- 
face with four cusps. The tren- 
chant character is entirely lost in 
the bear, even in the carnivorous 
species which exhibit no material 
difference in the teeth, any more 
than, as I mentioned at the com- 
mencement of this work, do the 
teeth of the human race, be they 
as Carnivorous as the Esquimaux, 
or vegetarian as the Hindu. 
There is also another peculiarity 
in the bear’s skull as compared with 
the cat’s. In the latter there is 
a considerable bulging below the 
aperture of the ear called the Juda 
tympani, or bulb of the drum. This 
is almost wanting in the bear, and 
it would be interesting to know 
whether this much affects its hear- 
ing. I myself am of opinion that 
bears are not acute in this sense, 
but then my experience has been : 
with the common Wndian Ursus, Skull of Bear (under view). 
