250 
POPULAR SCIENCE REVIEW. 
The tongue of the Orang is more like that of man than is 
the tongue of any other latisternal Ape, and the large papillae 
of the back of the tongue (called circumvcdlate) more resemble 
Fig. 5. 
The Kahan, or Proboscis Monkey. 
in arrangement even in the Gribbons the same parts in man 
than they do in the Chimpanzee, and very much more than in 
the Grorilla. 
The Gribbons, however, differ from man and from all the 
Fig. 6. 
higher latisternal Apes in having a little conical bifid mem- 
brane developed beneath the tongue. 
On the other hand, the Gribbons have a stomach which is 
