176 SOME MINUTE ANIMAL PARASITES 



studied of all, occurs there, in Babesia canis, which 

 produces malignant jaundice in dogs. The same 

 disease occurs in South Africa, and in both cases 

 usually entails loss of valuable animals imported 

 either for the stud or for hunting, bitches being more 

 commonly used for the latter purpose. 



Nearly allied to the Piroplasmata are smaller blood- 



FIG. 35 BABESIA BOVIS IN THE BLOOD OF A Cow : RED CORPUSCLES 

 REPRESENTED DIAGRAMMATICALLY 



A, B, Pear-shaped parasites showing nucleus, so-called blepharo- 

 plast, and loose mass of chromatin ; C, D, E, pyriform parasites 

 at different stages of direct division ; F, ovoid form 



parasites causing fatal diseases among cattle, par- 

 ticularly in East Africa. The organisms are known 

 under the name of Theileria parva, and " Coast fever " 

 is the dread of the farmer in the country. We may 

 next consider some of these parasites. 



