ACNIDOSPORIDIA, HAPLOSPORIDIA 451 



H. vejdovskii C. et M. (Fig. 207, g). In a freshwater oligochaete, 

 Mesenchytraevs flavus; spores 10-12^ long. 



Genus Urosporidium Caiillery et Mesnil. Similar to Haplo- 

 s'poridium, but spherical spore with a long projection. 



U . fuliginosum C. et M. (Fig. 207, /?, i). In coelom of the poly- 

 chaete, Syllis gracilis; rare. 



Genus Anurosporidium Caullery et Chappellier. Smiilar to 

 H aplosporidiuryi, but operculate spore spherical. 



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

 Donax trunculus; schizogony intracellular; cysts extracellular, 

 with up to 200 spores; spores about 5/^ long. 



Genus Bertramia Caullery et 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. 207, j, k). In body cavity of roti- 

 fers: Brachionus, Asplanchna, Synchaeta, Hydatina, etc.; fully 

 grown vermicular body 70-90^1 with 80-150 spores. 



B. capitellae C. et M. In the annelid Capitella capitata; spores 

 2.5/x in diameter. 



B. euchlanis Konsuloff. In coelom of rotifers belonging to the 

 genus Euchlanis. 



Genus Ichthyosporidium Caullery et Mesnil. In fish; often 

 looked upon as Microsporidia, as the organism develops into 

 large bodies in body muscles, connective tissue, or gills, which ap- 

 pear as conspicuous "cysts," which are surrounded by a thick 

 wall and contain numerous spores. 



/. giganteum (Thelohan) (Fig. 206). In various organs of Creni- 

 labrus melops and C. ocellatus; cysts 30/i-2mm. in diameter; 

 spores o-S/jL long. 



/. hertwigi Swarczewsky. In Crenilahrus paro; cysts 3-4 mm. 

 in diameter in gills; spores 6jU long. 



Genus Coelosporidium Mesnil et Marchoux. In coelom of Cla- 

 docera or Malpighian tubules of cockroach; body small, forming 

 cysts; spores resemble microsporidian spores; but without a polar 

 filament. 



C. periplanetae (Lutz et Splendore) (C. hlattellae Crawley) (Fig. 

 207, I, m). In lumen of Malpighian tubules of cockroaches; com- 

 mon; spores 5.5-7.5/xby 3-4;u. Some authors consider this a mi- 

 crosporidian. 



