30 INTRODUCTION TO THE PROTOZOA 



Class TELOSPORASIDA 



With simple spores containing 1 to many sporozoites but without polar filaments. 

 Without pseudopods, cilia or flagella (except for flagellated microgametes in some 

 groups). Locomotion by body flexion or gliding. Reproduction both sexual and 

 asexual. All parasitic. 



Subclass GREGARINASINA 



Mature trophozoite extracellular, large. Parasites of digestive tract and 

 body cavity of invertebrates. 



Subclass COCCIDIASINA 



Mature trophozoite ordinarily intracellular, small. 



Order EUCOCCIDIORIDA 



Parasites of epithelial and blood cells of vertebrates and invertebrates. 

 Life cycle involves both sexual and asexual phases. Schizogony present. 



Suborder ADELEORINA 



Macrogamete and microgametocyte associated in syzygy during 

 differentiation. Microgametocyte usually produces few micro- 

 gametes. Sporozoites enclosed in an envelope. Monoxenous or 

 heteroxenous. 



Superfamily ADELEICAE 



Zygote inactive, may or may not develop a typical oocyst. 



Family ADELEIDAE 



Sporocysts formed in oocyst. In epithelium of gut 

 and its appended organs. Chiefly in invertebrates. 



Klossia 



Family KLOSSIELLIDAE 



Typical oocyst not formed; a number of sporocysts, 

 each with many sporozoites, develops within a mem- 

 brane which is perhaps laid down by the host cell. 

 Two to 4 non-flagellate microgametes formed by 

 microgametocyte. Monoxenous, gametogony and 

 schizogony occurring in different locations in the same 

 host. In kidney and other organs of host. 



Klossiella 



