PARASITES OF THE ALIMENTARY TRACT 85 
The Tenia are not represented in the intestine of the 
pig. 
A whip-worm, Trichocephalus crenatus, is occasion- 
ally present. 
INTESTINAL PARASITES OF THE DOG AND CAT. 
Ollulanus Tricuspis is sometimes found in the ceso- 
phagus of the cat. 
Stomach. 
Spiroptera Sanguinolenta.—These worms may occur 
in the pharynx, cesophagus, and stomach of the dog, 
where they form clusters of nodules. They are more 
common in Italy than in any other country, and there 
they cause in the host a form of gastritis. They fre- 
quently penetrate to the bronchial glands, causing 
hypertrophy, with suppuration. They have been seen 
in the walls of the aorta. 
Spiroptera sanguinolenta is a blood-red worm. The 
female measures 6 to 8 centimetres, and the male about 
half that length. The so-called “ blackbeetle”’ is 
believed to act as an intermediate host in the life-cycle 
of this parasite. 
Ollulanus Tricuspis is found in the cesophagus of the 
cat. 
Intestine. 
Protozoa, as Coccidium bigeminum, may exist between 
the villi, but the symptoms they set up are usually 
slight. 
CESTODA OF THE ])0G. 
Next to the sheep, the dog is, of all the domesti- 
cated animals, the most frequently infested with 
tapeworms. 
The Teenie found in the dog are eight in number, 
