NoOs3.) ( 2HE« EGG OP ALLOLOSOPLZORA FOETIDA. 483 
the egg, and have an appreciable depth of about 16 microns. 
The rings of the two poles differ in both form and dimension, 
and this seems to be a constant feature, making it possible to 
recognize one from the other. No two rings of either pole 
have been found exactly alike. The light areas in their center 
Fic. 8. Surface view of one polar ring. A fragment of polar body near the 
polar ring. 
differ in size and shape, and the number and form of the 
smaller light areas, which occur through the mass of the rings, 
are by no means constant. The outer edges of the rings are 
never exactly alike in any two specimens. I hope in my future 
paper to be able to throw some light on the origin and destiny 
of these rings. 
