SPOROZOA, TELOSPORIDIA, COCCIDIA 



275 



Isospora lieberkuhni (Labbe) (Fig. 114, g). In the kidney 

 of the frog. The oocyst measures about 40 microns long. 



Genus Cyclospora Schneider. Development similar to that 

 of Eimeria. The zygote develops into an oocyst with two 

 spores, each possessing two sporozoites. 



Fig. 114 a-c. Isospora hominis. X700 (After Dobell). 



d. /. higemina. X465 (After Wenyon). 



e. /. rivolta. X465 (After Wenyon). 



f. I.felis. X465 (After Wenyon). 



g. /. lieberkuhni. X330 (After Laveran and Mesnil). 



Cyclospora caryolytica Schaudinn (Fig. 115, a). In the gut- 

 epithelium of the ground mole. 



Genus Caryospora Leger. The zygote develops into an 

 oocyst with a single spore containing eight sporozoites. Mem- 

 brane thick and yellow in color. 



Fig. 115 a. Cyclospora caryolytica. XIOOO (After Schaudinn). 



b,c. Caryospora simplex. X 600 (After Leger). 



d. Pfeifferinella ellipsoides. XIOOO (After Wasielewski). 



e. P. impudica. X600 (After Leger and Hollande). 



f. Barrouxia ornata. XIOOO (after Schneider). 



g. Lankesterella minirtia, a mature cyst in an endothelial 

 cell. X750 (After Noller). 



Caryospora simplex Leger (Fig. 1\5, b, c). In the gut-epi- 

 thelium of the viper, Vipera aspis. 



Genus Pfeifferinella Wasielewski. The oocyst contains 

 eight sporozoites; without any spore. The macrogamete forms 

 a receiving tube for the microgamete. 



