Sporozoa 275 



Fig. 6. 3. Syzygy, gamogony, gametes, and syngamy. A. Chain in Nema- 

 topsis legeri, from living (after Hatt). B. Simple syzygy in Gregarlna rigida; 

 x665 approx. (after Allegre). C. Multiple, branching syzygy in Carcinoecetes 

 Hesperus, penultimate satellites partially fused; x275 (after Ball). D. 

 Gamogony within gametocyst (length, 185-223^), Monocystis ventrosa (after 

 Berlin). E, F. Microgamete (x4690) and macrogamete (xl875) of Nina gracilis 

 (after Goodrich). G, H. Microgamete and macrogamete of Urospora rliya- 

 codrili; xl710 (after Gabriel). I, J. Flagellated microgamete (showing axial 

 filament) and syngamy, Monocystis mrazeki; microgamete, about 9.5jti; macro- 

 gamete, about llyLc (after Hahn). K, L. A pair of gametes and syngamy, 

 Gregarina blattarum; x2830 (after Sprague). M. Syngamy in Hyalosporina 

 cambolopsisae, microgamete with pointed nucleus; x4725 (after Chakravarty). 

 N-P. Macrogamete, flagellated microgamete, and syngamy in Hentschelia 

 thalassemae; x2430 (after Mackinnon and Ray). 



