ON CARYOKINESIS. 



177 



Figure 2 shows the same in a more advanced condition 

 as seen in the developing ovum of a starfish. 



A 

 B 

 C 

 D 

 E 

 F 

 M 



M^.. 



Fig. I. — Loligo.i 



Centre of Archoplasm. 

 Extra-nuclear archoplasmic filaments. 

 Cytoplasm. 



Interzonal archoplasmic filaments, 

 Intra-nuclear archoplasmic filaments- 

 Remnant of nuclear cavity filled with nuclear fluid. 

 Limit of the original nuclear cavity, sharply separated from the 

 surrounding cytoplasm. 

 n, n' Two daughter chromosome bands. 



The figure consists of two essential anatomical feat- 

 ures, (i) the central, elliptical body, and (2) the two star- 



1 Letters on other figures have the same significance. 



