Wenrich. — Spermatogenesis of PhrynotelUx magnus. 



PLATE 3. 



Figs. 25-27. — Later preleptotene stage. 



Fig. 28. — Earlji leptotene stage. 



Fig. 29. — Later leptotene stage. 



Fig. 30. — Early zygotene stage. 



Fig. 3L — 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. 



