342 



THE PROTOZOA 



FIG. 1 52. Life-cycle of Coccidium schubergi. A E, Schizogony ; F 7, gametog- 

 ony ; K, L, syngamy ; L 0, sporogony. A, Sporozoite liberated from 

 the spore ; B, three epithelial cells to show three stages of the parasite ; in 

 the first (to the left) a sporozoite (or merozoite) is seen in the act of pene- 



[Continued at foot of p. 343. 



