138 



MORPHOLOGY AND CULTURE OF MICROORGANISMS 



host, for example, Coccidium stieda (Eimeria cuniculi] (page 889) enters 

 the epithelium of the small intestine and of the bile ducts of the 



B 



1 



E 



D 



te 



\ 



FIG. 99. Sporozoits in the oocyst of Laverania malaria. A, Formation of 

 nuclear points which serve as the foci from which the sporozoits develop; B, a more 

 definite shaping of protoplasm and nuclei; C, Z), mature sporozoits in the oocyst 

 arranged about centers from which they radiate; E, a portion of one enlarged. 

 (After Grassi, from Doflein.} 



rabbit, while Eimeria avium enters and destroys the cells lining the 

 intestines of the birds which it infects (page 889). The H&mosporidia 

 live, for a part of their life cycle, within the red cells of the blood of 



