280 Sporozoa 



i 



Fig. 6. 6. Schizogregarinida: A. Schizocystis legeri, elongated schizont; 

 xl200 (after Leger). B, C. Meroselenidium keilini, mature form (B), me- 

 rogony of cytomeres (meroblasts) formed by division of schizont (C); x500 

 (after Mackinnon and Ray). D, E. Caulleryella pipientis, trophozoite and 

 spore; x900 (after Breslau and Bushkiel). F. Lipotropha macrospora, an 

 unusually small gregarine with intracellular development in fat body of 

 dipteran larvae; xl560 (after Keilin). G, H. Selenidium caulleryi, young 

 trophozoite and schizont; xl680 (after Ray). I-L. Lipocystis polyspora, 

 schizont in fat body of insect (I), syzygy in fat cell (J), merozoite (K), spore 

 (L); x2000 approx. (after Grell). 



Schizocystidae. In the former, a single spore is produced within each 

 gametocyst (Fig. 6. 5, B, C); in the Schizocystidae, several to many spores 

 are produced (Fig. 6. 5, M, N). Genera assigned to the two families are 

 listed below: 



