A curious snake, with something the character of the English slow-worm,
the amphisbaena--called by the natives Mai das Saubas, or the mother of
the saubas--is frequently found in these mounds. The natives believe
that the ants treat it with great affection, and will, if the snake is
removed, leave the spot. It is probable, however, that the amphisbaena
takes up its abode in the nest for the convenience of devouring the
inhabitants, whenever unable to procure other food.
Some of the American ants are of great size. One species (the
Dinoponera grandis) is an inch and a quarter in length, and
proportionally stout. It is seen marching in single file through the
forest; but though of considerable size, its sting is not severe, while
there is nothing particularly interesting about its habits.