COCCIDIA 



469 



Genus Angeiocystis Brasil. Schizogori}' unknown; sporogony in 

 polychaetes; oocyst forms 4 spores; spore oval, with about 30 

 sporozoites and residual body at a pole. One species. 



.4. audouiniae B. In the cardiac bod}- of Audouinia tenlaculata; 

 macro gametes vermiform, up to 65/u long. 



Fig. 218. a, b, Merocystis kathae, XlOOO (Foulon); c, Pseudoklossia 

 ])ectinis, two sporozoites of a spore, X1470 (Leger and Duboscq); d-k, 

 Eimeria stiedae: d, a trophozoite; e, host cell with three trophozoites; f, 

 g, schizogony; h, macrogametocyte, X1270 (Hartmann); i-k, oocysts, 

 XS30 (Wasilewski); 1, m. E. perforans, X750 (Perard); n, E. faurei, 

 X800 (Wenyon). 



Family 3 Dobelliidae Ikeda 



Numerous microgametes develop from each microgametocyte; 

 the union of gametocytes begins early. 



Genus Dobellia Ikeda. Schizonts sexually differentiated : micro- 

 sc.hizonts and macroschizonts; young schizonts binucleate; associa- 

 tion of 2 gametocytes begins early as in Adeleidea (p. 477), but 

 many microgametes are formed in each microgametocyte. One 

 species. 



7). linuclcata I. In the gul of Pcialostoma mtnuium; mature oocyst 

 20-25/i in diameter, with a thin wall, contains some 100 sporozoites 

 without any spore membrane around them. 



