Gastric Parasites in the Dog. 259 



spiral tail and two long delicate spiculse. Female about 7 lines 

 in length, and toward the caudal end has a large rosette like body 

 consisting of the uterus developed externally. 



Habitat. Found by Simonds in the stomach of a German pig 

 in the London Zoological Gardens. The male was free in the 

 contents of the stomach, while the female occupied a cyst in the 

 mucosa from which it protruded its head through a small open- 

 ing into the gastric cavity. 



From its habits it is probable that if present in large numbers 

 it would give rise to gastric indigestion and inflammation. 



GASTRIC PARASITES OF THE DOG. 



Spiroptera Sanguinolenta : Blood-red, narrow toward ends, mouth large, 

 round, oesophagus club-shaped, intestine straight, anus terminal, i to near 

 3 inches long ; oviparous, eggs ovoid. Habitat: Hard submucous tumors 

 of gullet, more rarely of stomach ; dog, wolf ; S. Europe, China, Brazil. 

 Each gallery opens into gullet or stomach ; may contain 20 worms ; also in 

 lung, aorta, and lymph glands. Larval form in eastern cockroach. Symp- 

 toms : Vomiting, emaciation, gastric catarrh, ravenous appetite, pulmonary, 

 pleural, aortic or glandular disease. Treatm.ent : Vermifuge. 



Spiroptera Sanguinolenta. This parasite is remarkable for 

 its blood red color from which its name is taken. Body cylin- 

 droid ; narrowed toward the extremities ; spirally twisted ; head 

 narrower than body ; mouth large, round ; oesophagus long, en- 

 larging posteriorly ; intestine straight ; anus terminal. Male i 

 to i^ inches long ; tail spiral, with two lateral alse, each sus- 

 tained by six papillae ; two unequal spicula. Female 2 to 2^ 

 inches long ; tail slightly curved and blunt ; vulva about two 

 lines behind the mouth. Eggs ovoid. Oviparous. 



Habitat. In hard submucous tumors of the oesophagus and 

 less frequently of the stomach in the dog, wolf and fox in South- 

 ern Europe, China and Brazil. The tumors vary in size from a 

 hazel nut to a pigeon's egg, and have not exceeded three in any 

 case. The worms live in the chambered interior, but can pass 

 out through a common orifice into the oesophagean lumen or gas- 

 tric cavity. From two to twenty worms have been met with in a 

 single tumor. They have also been found in the lung, the aorta 

 and the lymphatic glands. 



