SPOROZOA, GREGARINIDA 385 



striated longitudinally, oblique near the posterior end; cysts 

 1.5-2 mm. in diameter; spores 28.5ai by 12^*. 



Family 4 Aikinetocystidae Bhatia 



Trophozoites solitary or in syzygy; branching dichotomously, 

 branches with sucker-like organellae of attachment; spores 

 biconical. 



Genus Aikinetocystis Gates. Trophozoites cylindrical or colum- 

 nar, with a characteristic, regular dichotomous branching at 

 attached end, with sucker-like bodies borne on ultimate branches ; 

 solitary or 2 (3-8) individuals in association; spores biconical. 



A. singularis G. (Fig. 176, g, h). In coelom of Eutyphoeus 

 foveatus. E. rarus, E. peguanus and E. spinulosus (Burma); 

 trophozoites up to 4 mm. long; number of branches 8 or 16, 

 each with an irregular sucker; ovoid nucleus near rounded end; 

 spores of two sizes, 20-23/x long and 7-8At long; a few cysts found, 

 ovoid and 620^ long. 



Family 5 Stomatophoridae Bhatia 



Trophozoites spherical to cyhndrical or cup-shaped; with a 

 sucker-like epimerite; solitary; spores navicular, ends truncate; 

 8 sporozoites; in seminal vesicles of Pheretima (Oligochaeta). 



Genus Stomatophora Drzewecki. Trophozoites spherical or 

 ovoid; anterior end with a sucker-like epimeritic organella with a 

 central mucron; spores navicular. Several species. 



S. coronata (Hesse) (Fig. 176, i-k). In seminal vesicles of 

 Pheretima rodericensis, P. hawayana and P. barhadensis ; tropho- 

 zoites spherical, ovoid or elUptical, about 180|U by 130^; endo- 

 plasm with ovoid zooamylum grains; cysts ellipsoid or fusiform, 

 70-80/i by 50-60;u; spores in 2 sizes, llyu by 6m and 7^ by 3n and 

 in chain. 



Genus Astrocystella Cognetti. Trophozoites solitary; stellate 

 with 5-9 lobes radiating from central part containing nucleus; 

 anterior surface with a depression. One species. 



A. lohosa C. (Fig. 176, I). In seminal vesicles of Pheretima 

 heaufortii (New Guinea); diameter about 200/x; spores fusiform. 



Genus Craterocystis Cognetti. Trophozoites solitary; rounded; 

 a sucker-like depression on anterior end; myonemes well de- 

 veloped, running from concave to convex side. One species. 



C. papua C. (Fig. 176, m). In prostate and lymphatic glands of 



