ACNIDOSPORIDIA, HAPLOSPORIDIA 



637 



U. fuliginosum C. and M. (Fig. 272, h, i). In the coelom of the 

 polychaete, Syllis gracilis; rare. 



Genus Anurosporidium Caullery and Chappellier. Similar to 

 H aplosporidium, but operculate spore spherical. 



A. pelseneeri C. and C. In sporocyst of a trematode parasitic in 

 Donax trunculus; schizogony intracellular; cysts extracellular, with 

 up to 200 spores; spores about 5m long. 



Fig. 272. a, b, H aplosporidium chitonis, X1000 (Pixell-Goodrich;) c, H. 

 lirnnodrili, X1000 (Granata); d, H. nemertis, X1000 (Debaisieux); e, H. 

 heterocirii, X 1000 (Caullery and Mesnil) ; f , H. scolopli, X 1000 (Caullery 

 and Mesnil); g, H. vejdovskii, X1000 (Caullery and Mesnil); h, i, Uro- 

 sporidium fuliginosum. X1000 (Caullery and Mesnil); j, k, Bertramia 

 asperospora (j, cyst with spores; k, empty cyst), X1040 (Minchin); 1, m, 

 Coelosporidium periplanetae (1, trophozoite with spores and chromatoid 

 bodies), X2540 (Sprague). 



Genus Bertramia Caullery and Mesnil. Parasitic in aquatic worms 

 and rotifers; sausage-shaped bodies in coelom of host; spherical 

 spores which develop in them, possess a uninucleate sporoplasm and 

 a well-developed membrane. 



B. asperospora (Fritsch) (Fig. 272, j, k). In body cavity of rotifers: 

 Brachionus, Asplanchna, Synchaeta, Hydatina, etc.; fully grown 

 vermicular body 70-90m with 80-150 spores. 



