PLATE 2 
EXPLANATION OF FIGURES 
6. Horizontal section showing brain; actual diameter in region of the eyes 0.17 
millimeter, a, pharynx; h, brain; c, muscular layer; d, cells in intestinal wall, 
diagrammatic; o, ovary. 
7. Transverse section; actual breadth 0.36 millimeter. «, vitellaria; 6, intestine,, 
diagrammatic; c, embryonic capsule containing ciliated twins; d, section of single 
young; e, probably section of ovum like that shown in fig. 1, p;/, mass of yolk 
cells; 0, ovary. The intestine is on the dorsal side of the section. 
8. Horizontal section in dorsal region; actual length 0.4 millimeter, a, vitel- 
aria. 
9. Epidermis separating from the body of a specimen crushed under cover glass 
in sea water, lateral view. 
10. The same, vertical view. 
11. Another lateral view of epidermal cells with basement membrane. 
12. Epidermal cells showing degenerative changes. These changes took place 
rapidly under pressure. 
