540 



PROTOZOOLOGY 

 d 



Fig. 231. a, b, Lithocystis brachycercus, X1330 (Pixell-Goodrich); c, d, 

 Pterospora maldaneorum (c, X40; d, X530) (Labbe); e, f, Ceratospora 

 mirabilis (e, X45; f, X670) (Leger); g, Gonospora minchini, X2000 

 (Goodrich); h, i, Cystobia irregularis (h, X65; i, X770) (Minchin); j-m, 

 Allantocystis dasyhelei (j-1, X500; m, X560) (Keilin); n, Ganymedes 

 anaspides, X570 (Huxley). 



C. irregularis (Minchin) (Fig. 231, h, ^.Trophozoites irregular in 

 form; up to 500^ long; endoplasm opaque, granulated; cysts in 

 connective tissue of vessels; spore ovoid, epispore bottle-like, 25/u 

 long; in blood vessel of Holothuria nigra. 



Family 9 Allantocystidae Bhatia 



Trophozoites elongate cylindrical; cysts elongate, sausage-like; 

 spores fusiform, sides slightly dissimilar. 



Genus Allantocystis Keilin. Sporadins, head to head association; 

 cysts sausage-like; in dipterous insect. One species. 



A. dasyhelei K. (Fig. 231, j-m). In gut of larval Dasyhelea obscura; 



