342 



THE PROTOZOA 



FIG. 152. Life-cycle of Goccidium schubergi. A E, Schizogony ; F /, 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 o/ p. 343. 



