144 PARASITOLOGY. 
tuberculous; in the infested sheep that are slaught- 
ered the gut is rendered unfit for casings, by the 
disease. 
Symptoms.—This form of oesophagostomiasis is not 
so fatal as that caused by the oesophagostoma 
inflatum; the fleece may appear dry; it may be the 
cause of partial loss of the wool crop. There may 
be diarrhoea, general debility, anemia, sunken eyes, 
emaciation and death. 
In cattle it does not prove serious in the United 
States. Only a few nodules are found when these 
animals are infested; these nodules are usually con- 
fined to the small intestines. 
Treatment.—To destroy the adult worm in the 
intestinal tract, the same treatment is advised as in 
the Strongylus Contortus; salt and sulphate of iron 
constantly before them will also prove beneficial. 
OESOPHAGOSTOMA DENTATUM. (Dentis—tooth). 
Synonym.—Oecesophagostoma Subulatum. 
Distribution. — Occasionally found in the United 
States. 
Description.— The body is small in calibre and 
white or grayish-brown in color; the worm slightly 
tapering anteriorly; the mouth is circular and pro- 
vided with six papillae; the head is followed by a 
constriction. The caudal pouch of the male is short; 
the tail of the female terminates in a rather sharp 
point; the male is one-third to one-half inch long; 
the female is one-half to three-fourths inch. 
Animal Intested.—The hog. 
Parts Intfested.—The caecum and colon; the writer 
has found them in the kidney once; they have aiso 
been reported once in the liver. 
