This change of colour takes place over the whole body alike, for
the eyes and the tail come alike under its influence. In its movements
it is very sluggish, like the tortoise. It assumes a greenish hue in
dying, and retains this hue after death. It resembles the lizard in
the position of the oesophagus and the windpipe. It has no flesh
anywhere except a few scraps of flesh on the head and on the jaws
and near to the root of the tail. It has blood only round about the
heart, the eyes, the region above the heart, and in all the veins
extending from these parts; and in all these there is but little blood
after all. The brain is situated a little above the eyes, but
connected with them. When the outer skin is drawn aside from off the
eye, a something is found surrounding the eye, that gleams through
like a thin ring of copper. Membranes extend well nigh over its entire
frame, numerous and strong, and surpassing in respect of number and
relative strength those found in any other animal.