SPOROZOA 473 



evidence of disease, but is undoubtedly the cause of serious epi- 

 zootics among tame and wild rabbits. It is possible that this 

 species is identical with the preceding. 



Coccidium of Cattle 



Several European investigators have described a Coccidium 

 as the cause of bloody feces, without fever and with progressive 

 emaciation in cattle. The organisms in the stools of infected 

 animals are 18 to 25 by 13 ^. Infection experiments have been 

 successful in reproducing the disease. 



Coccidium. of Sheep 



A number of students in the United States and Europe have 

 reported a coccidiosis of sheep. The symptoms and organisms 

 are similar to the preceding. 



