Fig. 76. Late telophase; nuclei have become reorganized; alveolar layer 

 shown. X 300. 



Fig. 77. Nucleus at the beginning of reorganization. 



Fig. 78. Later stage showing chromosomes forming a coarse network. 



Fig. 79. Plasmotomy; all eetoplasmic structure except oblique fibers are 

 omitted. X 300. 



Fig. 80. Optical section of individual shown in figure 76 at the point 

 marked by the arrow. Note basal granules and basal portion of flagella. 



Fig. 81. Reorganization process of nucleus. 



Fig. 82. Early stage of the same process. 



Fig. 83. Later stage showing the vesicle forming around the heterochronio 

 some. 



Fig. 84. After completion of plasmotomy. Nuclear reorganization not yet 

 begun. X 300. 



Fig. 85. Somatella prior to plasmotomy. Note lack of synchronism in 

 development of eetoplasmic structures. X 300. 



[98] 



