OUE DOMESTICATED ANIMALS. 23 



seen infesting any quadruped except the ox. Its name 

 is derived from the serrated character of the lateral 

 margins of the joints or segments. 



Although the cestoid parasites are but feebly repre- 

 sented in the ox, considered as a bearer of tapeworms 

 properly so called, nevertheless this remarkable type of 

 entozoon finds no inconsiderable expression as a bovine 

 guest in one or other of its juvenile stages of development. 

 Thus, in plainer terms, it may be affirmed that the larvas 

 of tapeworms abound in cattle, whilst the cestodes in 

 their adult condition are of comparatively less frequent 

 occurrence. Issues of the highest practical importance 

 are intimately associated with a correct understanding of 

 this part of the science of helminthology, and it is there- 

 fore a happy circumstance to be able to state that our 

 labours in this phase of the subject have been rewarded 

 with the highest scientific successes. As the facts to be 

 brought forward are numerous, intricate, and involved, 

 I hasten without further prelude to introduce them by an 

 account of the Beef Measle. 



This parasite (Cysticercus bovis), though totally un- 

 known to butchers and fleshers at home, is nevertheless 

 familiar to those persons in India whose duty it is serve 

 out rations to our troops stationed there. Of this 

 fact we have lately received cumulative proof, more 

 particularly through the sixth annual report of the 

 Sanitary Commissioner with the Government of India, 

 through the Bombay Health Officer's Report for the 

 fourth quarter of 1870, and by the report of Assistant- 

 Surgeou T. E. Lewis "on the bladder worms found in 

 beef arid pork," some account of which appeared in the 

 Lcmcet for Dec. 14, 1872 (p. 860). 



Still more recently the Inspector-General of the 



