The tongue of the elephant is exceedingly small, and situated
far back in the mouth, so that it is difficult to get a sight of it.

7

Furthermore, animals differ from one another in the relative size
of their mouths. In some animals the mouth opens wide, as is the
case with the dog, the lion, and with all the saw-toothed animals;
other animals have small mouths, as man; and others have mouths of
medium capacity, as the pig and his congeners.

(The Egyptian hippopotamus has a mane like a horse, is
cloven-footed like an ox, and is snub-nosed. It has a huckle-bone like
cloven-footed animals, and tusks just visible; it has the tail of a
pig, the neigh of a horse, and the dimensions of an ass. The hide is
so thick that spears are made out of it. In its internal organs it
resembles the horse and the ass.)