u6 



BULLETIN OF THE BUREAU OF FISHERIES 



fr*s~-> 



85 



87 



86 



ea — --' — 



— -os 



90 



Egg of Menidi a menidia, X 34. (Drawn by Mrs. E. 1J. Decker.) 



— Egg shortly alter fertilization: at. adhesive thread';: gd, germinal disk; [g, fat globules. 

 — Egg in 2-cell stage. 



— Egg in 4-ceIl stage, surface view. 

 — Egg in 32-cell stage, with it cells visible in side view. 



— Egg in advanced cleavage stage. 

 — Egg in stage showing first outline of embryo: 3 ea, embryonic area; cs, cleavage space. (The blastoderm appears 



to project above the yolk of the egg more prominently in some eggs than in others.) 



