232 



ANIMAL PAEASITES 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 

 was as long as the 

 middle finger. There 

 is little doubt that this 

 was the Linguatula 



FiR. 64.— Isolated hook of Fig. 65.— Linguatula magnified six times. Four 



Linguatula. hooks are seen around the mouth in front. 



c, the anus. 



tsenkndes. These parasites may perhaps sometimes lose 

 their way in their peregrinations. Some years ago a 

 lioness died of peritonitis at Schonbrunn, 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, 



