Fic. 45.—Copidosoma (Litomastiz) truncatellus. A. Odcyte showing 
germinal vesicle (g.v) containing a chromatin-nucleolus (c.n) and a 
plasmosome (p). B. Egg a few minutes after deposition showing 
first maturation spindle (m.s) and ‘‘ Nucleolo” (N). C. Egg about 
one hour after deposition, showing three polar bodies (p.b), the 
first cleavage nucleus and the ‘‘Nucleolo.” D. Egg in two-cell 
stage, about one and one-half hours old. p.m=polar 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) without 
nucleolar substance. (From Silvestri, 1906.) (147) 
