168 PARASITOLOGY. 
Animals Infested.—The ox, sheep, hog, etc. 
Parts Infested.—The liver. 
Symptoms.—Similar to that caused by infestation 
with the preceding species. 
PARAGONIMUS WESTERMANII (Westerman). 
Synonyms.—Distoma Ringeri; Distoma Pulmonale; 
Distoma Westemanii. 
Distribution.—Rare in the United States. Common 
in China, and other Asiatic countries. 
Descripftion.—The body is thick and elongated; 
bluntly rounded at both extremities; its other 
anatomical structures are similar to the preceding 
flukes; the ventral sucker is located about three- 
sixteenths of an inch behind the oral one; the adult 
is about one-half inch long; it is reddish brown or 
slate colored. 
Animals Infested.—Man, hog, dog and cat. 
Parts Intested.—The lungs. 
Conditions Produced.—The fluke invades the lung 
tissue and produces a cyst; some are located super- 
ficially, some deep; the cyst is usually from one-half 
to one inch in diameter and contains a small quantity 
of chocolate colored fluid and usually two flukes. 
AmPHISTOMA CERVI (Amphi—both) 
(Stoma—mouth) 
Synonyms.—Conical Stomach Fluke; Amphistoma 
Conicum. 
Distribution.—Rare in the United States. Have 
been reported in Canada, Europe, Australia and 
Egypt. 
Description.—It is conical in shape, thin in front 
