PARASITES OF ANIMALS. 59 



Lists of the Parasites of Man and Domestic Animals. 



The number of species of these internal parasites now 

 known is upwards of 100. Therefore it will be impossible, at 

 this time, to do more than enumerate the species, with their 

 principal modes of occurrence, and then describe more fully- 

 some of the most important kinds, with their effects and rem- 

 edies, so far as space will admit. It is hoped that the lists 

 will serve as a key or index for those who wish to pursue the 

 subject further, in the more extensive works upon this subject. 



INTERNAL PARASITES OF MAN. 



CESTODES. 



Tcenia solium Linneeus. Intestine, young in hog ; common. 

 T. mediocanellata Kuch. Intestine, young in beef ; common. 

 T. Jiavopunctatay^QixAoMdi. Intestine; one case only, in the 



United States. 

 T. lophosoma Cobbold. Intestine, larva unknown; one 



case. 

 T. eUijjtica Batsch. Intestine ; rare, common in cats. 

 T. nana Sieljold. Intestine ; only observed in Egypt. 

 Bothriocepha^us latus Bremser. Intestine, larva in fish (?) ; 



Europe, rare in America. 

 B. cordatus Leuckart. Intestine ; common in Greenland. 



In the larval state. 



Tcenia solium Linn. In muscles, brain, eye, etc. ; not rare. 



T. marginata Batsch. Abdominal viscera ; very rare. 



T. acanthotrias Weinland. In muscles, mature worm un- 

 known ; observed once only, in Virginia. 



T. echinococcus Siebold. Tumors in liver, brain, lungs, ab- 

 domen, muscles, etc., adult in dog; common. 



TREMATODES. 



Billiarzia hcematobia Cobbold. Inhabits the blood-vessels, es- 

 pecially the portal veins and those of the kidneys and blad- 

 der ; very common in Africa, producing a very serious disease. 



Fasciola hepatica Linngeus. Gall-bladder and ducts, and 

 sometimes beneath the skin ; common in sheep, rare in 

 man. 



