COCCIDIA 



503 



Fig. 255. The life-cycle of Haemogregarina stepanowi, X1200 (Reich- 

 enow), a, sporozoite; b-i, schizogony; j-k, gametocyte-formation, 1, m, 

 microgametocytes; n, o, macrogametocytes; p, q, association of gameto- 

 cytes; r, fertilization; s-w, division of the zygote nucleus to form eight 

 sporozoites. 



