Wenrich. — Spermatogenesis of Phrynotettix maguus. 



PLATE 9. 



Fig. 99. — Side view of first spermatocyte metaphase, showing roughened 

 condition of the accessory, of chromosome-pair "5," and of the 

 polar tips of autosomes. 



Fig. 100. — Side view of first spermatocyte metaphase, showing roughened 

 condition of chromosome-pairs "B" and " C," and of the accessory. 



Figs. 101-105.— Telophases of spermatogonia, showing the larger members of 

 the chromosome-pairs " B" (unequal type) and "C" (type Ci). 



Fig. 106. — An example of tetrad "B" from each of the 13 animals studied. 



Fig. 107. — An example of tetrad "C" from each of the 13 animals studied. 

 (The corresponding letters in figures 106 and 107 refer to the same 

 animal) . 



Figs. 108-110. — Telophases of connective-tissue nuclei, showing polar gran- 

 ules and chromosome "B." 



Figs. Ill, 112. — Nuclei from the foUicular envelope. 



