OTHER SPIROCHETES. 653 



IV. OTHER SPIROCHETES. 



Among other pathogenic spirilla may be men- 

 tioned Spirochceta anserina, of the spirillosis of 

 geese, Spirochceta gallinarun, causing a fatal dis- 

 ease of chickens and 8. Theileri, found in a disease 

 of cattle in Africa. The last two are transmitted 

 by ticks. 



