III. SPOROZOA: ILEMOSPIIORIDA 



189 



FIG. 146. 1-7. Developmentof Coccidium schubergi (after Schaudinn). i, entrance 

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

 zoites; 5, macro- and microgametes; 6, zygote divided into four sporozoiles. 8-u, 

 Emeria stiedce (after Wasiele\vsky und Mctzner). 8, autoinfection (progamic increase) ; 

 9, formation of sporobUsts, 10, change of spores into sporozoites; u, spore with two 

 sporozoites, more enlarged; c, z, sporozoite; e, epithelial cell; k, n, nucleus; mi. micro- 

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



FIG. 147. Development of Plasmodium pracox (pernicious malaria) (after 

 Grassi). i, blood corpuscle with ncsvly t-nti-red Ha-mama-ba; 2, multiplication of 

 parasite- 3 young before the breaking down of corpuscle; 4-5, formation of ma< i 

 metes; 6 formation of microgametes; 7, fertilization; 8, fertili/.ed motile macro.ua m 

 (ookinet)-o digestive tract of mosquito, in front salivary glands, stomach coverec 

 encysted parasites; 10-12, division of cyst; 10, formation of sporoblast 

 formation of sporozoites from sporoblast with the residual body; i.;. part 

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



