166 The Alligator and Its Allies 
One of these papilla as seen under fairly high 
magnification is shown in Figure 40. 
The areolar tissue, a, forming the base of the 
section is of about the same character as seen in 
Fic. 40. The covering of the roof of the mouth of the hibernat- 
ing animal, under fairly high magnification; a, areolar tissue; e, 
epithelium; h, horny layer; f, fibers of horny layer. 
the section of the tongue. Less than one tenth 
of the thickness of the entire areolar base is shown 
in this section. 
The epithelium, e, where not thrown into papille, 
has also about the same character as that of the 
anterior region of the tongue—the same number 
of cell layers and the same distinct horny layer. 
At intervals the thickness of the cellular part of 
