Wenrich.— Spermatogenesis of Phrynotettix magnus. 



PLATE 1. 



All figures are of the early spermatogonia. 



Figs. 1, 2. — In metaphase. 



Figs. 3, 4. — In anaphase. In figure 4 the cytoplasm has been drawn in order 



to show the hyaline region around the chromosomes. 

 Fig. 5. — Early telophase. 

 Figs. 6, 7. — Side view and optical section (polar view), respectively, of an 



early telophase in which the chromosomes have begun to expand. 



The cytoplasm has been represented in order to show the hyaline 



region around the chromosomes. 

 Figs. 8, 9. — Side view and optical section, respectively, of later telophase. 



Vesicles persistent. 

 Figs. 10, 11. — Side view and optical section, respectively, of late telophase. 



Vesicles mostly disappeared. 

 Figs. 12, 13. — Side view and optical section, respectively, of stage showing 



the greatest diffusion of chromatin that was found. 



