9 





\ 



* 

 lb 





v.f 



>?« 





<': 





A, C SuVKSfOS 



1—3. 



4—9. 



10. 



11-12. 



13. 



14. 



fron Hirmatit.yylin ami Orttngf Slai 



M I CROC A METE FORMATION Scait = 30^ 



Karly tVirnis of niiiTogatiictocyii: showing division of karyosome 



Gratiually eiilrirginp forms with repeated division of nucleus and karyosome 



Commencing condensution of chromatin granules 



Lengthening out of condensed chromatin to form budy of microgamete 



Adult microgametes with karyosome still apparent 



Free niicrogamcics with lerniinal flagellun\ 



\ 



V* 



/■ 



iiii'li" I iimliiiilliiillill! 



Scaif - :ui^i 

 Macrogamete Formation 

 l.'t"I7. Early forms showing primary division of chromatin of nucleus 



18. Cap of extruded chromatin seen flattened between parasite and containing cell 

 19' — 'Z\. Secondary division of chromatin of nucleus 



22—23. Commencing formation of granules in protoplasm after nuclear division 

 24—26. Adult niacrogametcs awaiting fertilisation. In 2A capsule is not yet completed 

 27— 2H. After fertilisation showing irregular chromatin staining granules in cytoplasm 

 froH UtrHiatoxylitt ami Orangt Stnin 



