Page 94. 
132 THE VISCERAL ANATOMY 
Alimentary Canal.—The palate, which is covered with a smooth 
epithelium, is marked by conspicuous transverse angular ridges. 
There are eleven of these on each side; and they are not continuous 
anteriorly across the middle line, but the prominences of one side are 
carried on as the fossee on the other. The posterior ridges are con- 
tinuous from oue side to the other; and they, instead of being trans- 
verse, as are those in front, are arranged in the form of a V, the 
concavity of the V being directed forwards. On the soft palate, which 
is 43 inches long, these ridges disappear. The palate is narrow, as 
can be readily seen by an inspection of the skull; anteriorly its 
breadth is 2$ inches, and posteriorly 3} inches, gradually increasing 
from before backwards. ; 
In no part of the alimentary canal, except on the surface of the 
tongue, were there any papille visible to the naked eye. 
The cheeks form pads on either side, composed of areolar and mus- 
cular tissue, which project into the cavity of the mouth. These pads 
are shaped like prominent blunted triangles, with their apices directed 
Fig. 1. 
Tongue of C. sumatrensis (superior surface). , 
p, soft palate, embracing the root of the tongue pig, epiglottis. 
