94 PARASITOLOGY. 
ing at the summit of this tumor. If the tumor is 
located in the wall of the stomach it may rupture on 
the peritoneal surface, and may cause a fatal peri- 
tonitis. When tumors are located in the wall of the 
stomach vomiting is sometimes noted; catarrh of the 
stomach and rapid loss of condition may follow. 
SIMONDSIA PAaRADOXA (Simonds). 
Distribution.—Found in Europe; have not been 
reported in the United States. 
History.—Discovered in 1852 by Mr. Simonds in a 
German pig in the London Zodlogical Garden. 
Description.—The body is thread-like in calibre and 
tapers toward the head; the cephalic extremity is 
provided with two lateral membranous wings; the 
mouth is supplied with two papillae; toward the 
posterior part of the body of the female there is 
developed a rosette-shaped organ which is formed 
by the everted uterus; the tail of the male is coiled 
in a spiral manner and is provided with two spiculae; 
the male is one-half inch long, the female three-fifths 
inch. 
Antmal Intfested.—The pig. 
Part Intesied.—The stomach. 
Condition Produced.—The males are found free in 
the stomach, while the females are found in small tu- 
mors. Large numbers of them may produce indi- 
gestion and inflammation. 
FILARIA PariLytosa (Filum—thread ; papilla). 
Synonyin.—Filaria equina ; Seta- 
ria equina. 
