dugoiig, twohorned rhinoceros , and tapir of Sumatra. 273 
broader, making the openings of the nostrils larger. In the 
American, the parietal bones are much compressed, and the 
os frontis has a considerable ridge. 
When the bones of these tapirs are compared with those 
of the rhinoceros, they are in, general alike, except the sca- 
pulas and pelvis, which have a less comparative extent of 
surface. 
The tapir has seven molares above and six below ; the 
rhinoceros only six above and below. In the molares of the 
tapir the broad outside plate of those of the rhinoceros is 
wanting, but the deep indentations on the inside are nearly 
alike. 
The large bony process projecting from the outside of the 
thigh bone, so conspicuous in the rhinoceros, is equally so in 
both species of tapir, and is much smaller in the horse. 
The Sumatra tapir has a stomach in shape very much like 
that of the rhinoceros ; it is one foot eight inches long. The 
oesophagus is smooth and cuticular, the cuticle terminating 
round the entrance into the stomach in an oval form ; the 
stomach in its long axis resembles that of the hog ; its greatest 
breadth nine inches ; the internal membrane smooth and 
villous. 
The small intestines are sixty-nine feet long. The valvulae 
conniventes do not extend so far down as in the rhinoceros ; 
the surface is villous towards the caecum. The length and 
greatest breadth of the coecum is one foot ; internally it is 
honeycombed, and has conical projections like those found 
by Mr. Thomas in the small intestines. The coecum is 
shorter than in the rhinoceros, and conical. The colon is about 
three feet from the coecum, dilates considerably, and for about 
