The chameleon

resembles the lizard in the general configuration of
its body, but the ribs stretch downwards and meet together under the
belly as is the case with fishes, and the spine sticks up as with
the fish. Its face resembles that of the baboon. Its tail is
exceedingly long, terminates in a sharp point, and is for the most
part coiled up, like a strap of leather. It stands higher off the
ground than the lizard, but the flexure of the legs is the same in
both creatures. Each of its feet is divided into two parts, which bear
the same relation to one another that the thumb and the rest of the
hand bear to one another in man. Each of these parts is for a short
distance divided after a fashion into toes; on the front feet the
inside part is divided into three and the outside into two, on the
hind feet the inside part into two and the outside into three;