FIGURE 2.
A Melibe mouth, esophagus and stomach preparation distended to the following degrees: (A) empty, (B) ¼ full, (C) ½ full, (D) ¾ full, (E) fully distended. Note the cannula held in place by a thread in the bottom right corner of image A, and the tied-off junctions between the stomach and intestines in all the images.
