232 



ANIMAL PARASITES AND MESSMATES. 



rabbit, &c., is found accidentally in man, and perfect in 



certain mammals. Examples have been given of sick 



persons being completely cured by the evacuation of 



worms from the nostrils; these worms were, doubtless, 



linguatulse. Fulvius Angelianus and Vincentius Alsarius 



speak of a young man who had suffered for a long time 



from head-ache, and 



who passed a worm 



from his nostrils. It -_^^xx,^v_„ 



was as long as the l^^fe'*!™^ 



middle finger. There 



is little doubt that this 



was the Linguatida 



Fiff. 64.— Isolated hook of Fiof. 65.— Linguatula magnified six times. Four 



iiinguatula. hooks are seen around the mouth in front. 



c, the anus. 



idenidides. These parasites may perhaps sometimes lose 

 their way in their peregrinations. Some years ago a 

 lioness died of peritonitis at ^chonbrunn, and, after 

 death, the liver, the spleen, and other organs were 

 found to be filled with encysted linguatulse. 



The nematode worms are long and rounded, like the 

 ordinary ascarides of infants, which take up their abode 

 in all the organs of animals of the various classes of the 

 animal kingdom. About a thousand varieties are known, 



