650 



PROTOZOOLOGY 



attached on bases; sporoplasm usually not filling intrasporal cavity; 

 Numerous species in the gall-bladder of marine fish, except C. shasta 

 (Noble, 1950) which was found "widely distributed in viscera" of 

 fingerling rainbow trout (Salmo gairdneri). 



Fig. 279. a, Ceratomyxa mesospora, X1000 (Davis); b, c, C. hopkinsi, 

 X1000 (Jameson); d-j, Leptotheca ohlmacheri (d, section of a uriniferous 

 tubule of Rana pipiens, with trophozoites and spores, XS00; e, a tropho- 

 zoite with a bud; f-h, disporous trophozoites; i, a spore with extruded 

 polar filaments; j, surface view of spore, X1500) (Kudo). 



