Wenrich. — Spermatogenesis of Phrynotettix magnus. 



PLATE 4. 



Figs. 39-44. — Stages in division of first spermatocytes. 



Fig. 39. — Polar view of metaphase, showing twelve chromosomes. 



Fig. 40. — Polar view of metaphase (eleven chromosomes). 



Fig. 41. — Side view of anaphase, showing dyads. 



Fig. 42. — Polar view of anaphase, showing twelve dyads. 



Fig. 43. — Polar view of anaphase, showing eleven dyads. 



Fig. 44. — Telophase. 



Figs. 45-49. — Interkinesis stages. 



Fig. 45. — Dyads undergoing diffusion. 



Fig. 46. — Dyads (except the accessory) still more diffused. 



Fig. 47. — Stage of greatest diffusion. OutUne of dyads uncertain. 



Fig. 48. — A prophase of the second spermatocyte division. Outline of dyads 



reappearing in the middle of the area in which they diffused. 

 Fig. 49. — Late prophase of second spermatocyte. Dyads fully reformed. 



