Wenricu.— Spermatogenesis of Phrynotettix magnus. 
PLATE 83. 
Figs. 25-27.— Later preleptotene stage. 
Fig. 28.— Early leptotene stage. 
Fig. 29.— Later leptotene stage. 
Fig. 30.— Early zygotene stage. 
Fig. 31.— Later zygotene stage. 
Figs. 32, 33.— Early pachytene stages. 
Fig. 34.— Later pachytene stage. 
Figs. 35-37.— Stages of breaking up of composite granule of pachytene stage 
into its component polar granules. 
Fig. 37.— Diplotene stage. 
Fig. 38, a-g.— Different types of tetrads from a single cyst of postspireme, 
or tetrad, stage. 
