Fig 



45 —Copidosoma (Litomastix) truncatdlu^. A. Oocyte showing 

 germinal vesicle {g.v) containing a chromatin-nucleolus (c.n) and a 

 plasmosome KP)- B. Egg a few minutes after deposition showing 

 first maturation spindle {m.s) and " Nucleolo" (A). C. Egg ;ibout 

 one hour after deposition, showing three polar bodies (p.6), the 

 first cleavage nucleus and the "Nucleolo." D. Egg m two-cell 

 stage, about one and one-half hours old. p.n = Pohir nucleus. 

 E. Four-cell stage. F. Egg about four and one-half hours old 

 showing two polar nuclei dividing, two embryonic cells containing 

 nucleolar substance, and six embryonic cells (dividing) ^ithout 

 nucleolar substance. {From Silvestri, 1906.) (i-^'^ 



