111. SPOROZOA: HiEMOSPHORIDA 



189 



Fig. 146. — 1-7. Develupmentof Coccidium schuhetgi (after Sthaudinn). i, entrance 

 of sporozoites in cell; 2, its growth: 3, nuclear multiplication; 4, division into mero- 

 zoites; 5, macro- and microgametes; 5, zygote di\ided into four sporozoites. 8-11, 

 Emeria stieda: (after Wasiele«sky und Metzner). 8, autoinfection (progamic increase) ; 

 9, formation of sporobLists, 10, change of spores into sporozoites; 11, spore "with t^^■o 

 sporozoites, more enlarged; c, s, sporozoite; e, epithelial cell; k, n, nucleus; nn, micro- 

 gamete; 0, macrogamete; r residual body; sp, spore; sp', sporoblasts. 



8 



Fig. 147. — Development of Plasmodium prcBcox (pernicious malaria) (after 

 Grassi). i, blood corpuscle with newly entered Hcemamceba; 2, multiplication of 

 parasite; 3, young before the breaking down of corpuscle; 4-5, formation of macroga- 

 metes; 6, formation of microgametes; 7, fertihzation; 8, fertilized motile macrogamete 

 (ookinet) ; 9, digestive tract of mosquito, in front sahvarj' glands, stomach covered with 

 encysted parasites; 10-12, division of cj'st; 10, formation of sporoblasts; 11 and 12, 

 formation of sporozoitesfromsporoblast with the residual body; i^, part of salivary gland 

 of mosquito infected with sporozoites. All figures except 9 greatly enlarged. 



