Fig. 205. LiFK-HisTonv OF MONOCYSTIS AOTLIB. 



A, Young Trophozoite in residual protoplasm of a sperm-polyplast. S, Adult 

 trophozoite surrounded by spermatozoa of earthworm. C, Free trophozoite. 7), 

 Gametocyst containing two gametocytes. E, Gametocytes showing nuclear division. 

 F, Gametes formed from gametocytes, and residual protoplasm. G, Zygotes, some 

 with two separate nuclei, some with the two fused into one. H, Fully developed 

 spores (pseudo-navicellae) in gametocyst. /, Young stage of spore with single 

 nucleus. K, Spore with sporocynt formed but nucleus undivided. L, Fully deve- 

 loped spore containing eight sporozoites. M, Transverse section of mature spore. 



416 



