Page:Popular Science Monthly Volume 6.djvu/600

582 all this you see that the mouth of the lobster is well armed with teeth and scissors to tear and cut its food. Counting from the front, it has first the true jaws (mandibles); then the two pair of little jaws (maxillæ); and these are followed by the three pair of foot-jaws (maxillipedes)

making, altogether, six pair, which are all turned up against the mouth. In front of the jaw are two very long jointed feelers called antennas, but you seldom see them at their full length (Fig. 15); they are easily broken (Fig. 19). Next to the feelers (antennæ) are two



little feelers, or antennules (Figs. 15, 20); and last of all, in front, comes a pair of joints which support the eyes (Fig. 21), called the optic pair of appendages. Now let us begin with the eyes, and go back to the tail, to see how many pairs of feelers, jaws, hands, feet,