PLATE 5. 



Fig. 2. Unsegmented egg, actual size 264^ 



Fig. 3. First cleavage, greatest diameter 420/i 



Fig. 4. Second cleavage, greatest diameter 420/j. 



Fig. 5. Third cleavage, greatest diameter 360^ 



Fig. 6. Fourth cleavage, greatest diameter 360^ 



Fig. 7. Fifth cleavage. Cleavage pore shown, 384^ 



Fig. 8. Sixth cleavage. Cleavage pore shown, 384/i 



Fig. 9. Seventh cleavage, 360^ 



[2201 



