Plate III 



Scatophaga and Tetanocera (continued) 



Fig. 46 Tetanocera, first spermatocyte, prophase. 



Fig. 47 Tetanocera, first spermatocyte, metaphase. 



Fig. 48 Scatophaga, first spermatocyte, anaphase. 



Fig. 49 Scatophaga, first spermatocyte, anaphase. 



Figs. 50 and 51 Scatophaga, second spermatocyte, prophase. 



Figs. 52 and 53 Tetanocera, second spermatocyte, metaphase. 



Fig. 54 Scatophaga, oogonium, prophase. 



Fig. 55 Scatophaga, oogonium, anaphase. 



Fig. 56 Tetanocera, oogoniaum, prophase. 



Drosophila ampelophila 



Fig. 57 Spermatogonium, late prophase. 



Figs. 58-61 Spermatogonia, metaphase. 



Fig. 62 First spermatocyte, early growth stage. 



Fig. 63 First spermatocyte, very early prophase. 



Fig. 64 First spermatocyte, prophase. 



Figs. 65 and 66 First spermatocyte, late prophase. 



Fig. 67 First spermatocyte, metaphase. 



Fig. 68 Heterochromosome pairs. 



Figs. 69-71 First spermatocyte, metaphase. 



Figs. 72 and 73 First spermatocyte, anaphase. 



