MORPHOLOGY AND TAXONOMY OF THE SPOROZOA 565 



Family 1. Cryptosporidiidae Poche 1913. 



One genus — C. muris Tyzzer 1907. . . .Genus Cryptosporidium Tyzzer 



Family 2. Selenococcidiidae Poche 1913. 

 One genus — S. intermedium Leger and Du- 



boscq 1909 Genus Selenococcidium 



Leger and 1 )uboscq 

 Family 3. Eimeriidae Poche 1913. 



1. The zygote forms sporozoites directly (1 



sporocyst) 2 



The zygote forms more than 1 sporocyst . . 3 



2. Sporocyst and oocyst without micropyle 



Genus Pfeifferinella Wasielewski 

 Sporocyst and oocyst each with micropyle 



Genus Caryospora L6ger 



'■]. The zygote forms 2 sporocysts 4 



The zygote forms more than 2 sporocysts . 6 



4. Each sporocyst contains 2 sporozoites 



Genus Cyclospora A. Schneider 

 Each sporocyst contains more than 2 sporo- 

 zoites 5 



5. Each sporocyst has 8 sporozoites. . .Genus Dorisiella Ray 



Each sporocyst has 4 sporozoites. . .Genus Isospora ( I ) A. Schneider 



G. The zygote forms 4 sporocysts 7 



The zygote forms many sporocysts 11 



7. Each sporocyst has 2 sporozoites 8 



Each sporocyst has ±30 sporozoites. Genus Angeiocystis Brasil 



8. Sporocysts ellipsoidal or serrated at one 



end Genus Eimeria (2) A. Schneider 



Sporocj'sts not ellipsoidal 9 



9. Sporocysts without neck at one end 10 



Sporocysts with neck at one end. . Genus Jarrina Leger and Hesse 



10. Sporocyst a double pyramid with short 



spines Genus Crystallospora Thelohan 



Sporocyst bivalved, opening like pea-pod 



Genus Goussia Labbe 



1 1 . Each sporocyst has 1 sporozoite 12 



Each sporocyst has 2 or more sporozoites. 13 



12. Sporocysts with radial markings or spines 



Genus Echinospora Leger 

 Sporocysts smooth Genus Barrouxia Schneider 



13. Each sporocyst has 2 sporozoites. . .Genus Pseudoklossin 



Leger and Duboscq 

 Each sporocyst has main - sporozoites 



Genus Merocystis Dakin 



1. Synonyms of Isospora are: Diplospora Labbe, Klossia Lablx'\ Hyalo- 



klossia Labbe and Lucertina Henri and La Blois 1925. 



2. Synonyms of Eimeria— Mitrocystis Pinto 1927; Paracoccidium Lav. 



and Mesnil; Orthospora A. Schn. 

 Family 4. Caryotrophidae Ltihe 1906.. .Genus Caryotropha Siedlecki 

 Family 5. Aggregatidae Labbe 1899. 

 One genus; type sp. A . eberthi Labbe 1895 



Genus Agg regain (1) 



