Wenhich. — Spermatogenesis of Phrynotettix magnus.' 



PLATE 7. 



Figs. 75-78. — Zygotene stages showing incomplete conjugation of chromo- 

 some-pair "A." 

 Fig. 79. — Side view of first spermatocyte metaphase, showing tetrad "A," 



as an extended rod with a constriction in the middle. 

 Fig. 80. — Polar view of a telophase of the first spermatocyte, showing dyads 



"A" and "B." 

 Fig. 81. Side view of a telophase of the first spermatocyte, showing dyads of 



"A" and the accessory. 

 Fig. 82. — Side view of first spermatocyte telophase, showing the "A" dyads 



in both daughter cells. 

 Fig. 83. — Interkinesis stage, showing the accessory dyad and the "A" dyad 



(more condensed). 

 Fig. 84. — Interkinesis stage, showing the accessory dyad and the "A" dyad 



(less condensed). 

 Fig. 85. — Telophase of the second spermatocj^te, showing the "A," "B," 



and accessory monads. 

 Fig. 86. — Telophase of the secondary spermatocyte, showing the "A" and 



"B" monads. 



