KEMAT01D, OK KOUND WOKMS. 341 



Many other species of ascarides have been described, and especi- 

 ally Ascaris vesicularis of the common fowl and turkey; Ascaris 

 dispar of the goose ; Ascaris inflexus of the domestic fowl ; Ascaris 

 maculosa of the pigeon, &c. 

 m. GENUS SPIROPTERA. 



Species a. Spiroptera megastoma of the horse ; found in tumors 

 developed at the cardiac end, and in the walls of the 

 stomach. 



6. Spiroptera sanguinolenta of the dog and wolf; also found 

 in tumors of the oesophagus and stomach. In some 

 countries these parasites are common, and as some 

 observers have found them in rabid dogs, there was a 

 belief at one time that rabies depended on this worm. 



c. Spiroptera strongylina of the pig and wild boar ; found 



in the stomach. 



d. Spiroptera hamulosa of the common fowl. 



e. Spiroptera uncinata of the tubercles of the oesophagus, 

 iv. GENUS TRICHINA. 



Species a. Trichina spiralis ; in the muscular fibres of man, pig, 



ox, rabbit, and other domestic quadrupeds. 

 v. GENUS TRICHOSOMA. 



Species a. Trichosoma plica of the dog; found in the urinary 

 bladder. 



b. Trichosoma brevicollis of the goose. 



c. Trichosoma longicollis of the domestic fowl. 

 vi. GENUS TRICOCEPHALUS. 



Species a. Tricocephalus dispar of man. 



5. Tricocephalus affinis of the dog; found in the ccecum 



of ruminants. 



c. Tricocephalus depressiusculus of the dog; found in the 



ccecum. 



d. Tricocephalus crenatus of the pig and wild boar; found 



in the large intestine, 

 vii. GENUS FILARIA. 



Species a. Filaria lacrymalis of the horse and ox; found in the 

 rabbit. 



6. Filaria papillosa of the horse, ox, and ass; found in the 



globe of the eye, said to be in the anterior chamber, 

 but usually hi a cyst within the cornea. 



c. Filaria immitis of the dog; found in the heart. 



d. Filaria trispinulosa of the dog; found by Gescheidt in 



the capsule of the crystalline lens. 



