832 PAKASITIC DISEASES. 



Species (c.) S. strongylina of the pig, &c. ; found in the stomach, 

 „ {(1.) S. scutata oesopliagea bovis of ox, also described in the 

 horse ; found in the mucous membrane of oesophagus. 

 Worms supposed to be .the same are found in tongue 

 of pig and oesophagus of sheep. 

 „ (e.) S. liamulosa of the common fowl. 



»> (/•) ^- cincinnata {Onchocerca reticulata) of horse ; found in 

 the foot ligaments wound round the elastic fibres. 

 Larval forms of nematodes are found in tumours in the 

 sub-mucous layers of the wall of the alimentary canal. 



Genus Oxyuris. 

 Species (a.) 0. curvula of the horse and ass ; found very frequently in 

 the caecum and colon, 

 „ (&.) 0. vermicularis of man; found in the large intestine and 

 rectum. 



Genus Dochmius (Strongylus of some authors). 



Species (a.) D. Jiypostomus of the ^eep, goat, and other ruminants ; 

 found in the inteftme, 

 „ (h.) D. tiibceformis of the cat; found in the duodenum, 

 „ (c.) D. trigonocephalus of the dog; found in the stomach and 

 small intestine. A variety is declared to exist in the 

 y right side of the heart, 

 „ {<!.) D. cernuus of sheep ; found in small and large intestine, 

 „ (e.) D. duodenalis (Anchylostoma duodenale) of man; found 

 in duodenum. 



t/ 



Genus Strongylus. 



Spjecies (a.) S. armatus of horse ; sexually mature adults found in 

 ca3cum and colon, seldom in the duodenum, in the 

 pancreas and tunica vaginalis of testis ; the larval 

 forms in aneurisms in the intestinal arteries, &c. ; 

 the eggs come out with the excrements and develop 

 free living larval forms in water; the free living 

 larvae get into alimentary canal with the water, and 

 thence into the blood-vessels, where they cause 

 aneurisms ; becoming sexually mature they leave the 

 aneurisms, and bore their way into the alimentary 

 canal, where they copulate, 

 {h.) S. tetracantlms of horse ; found in small intestine and 

 caecum ; the larval forms are free under the epithelium 

 or enclosed in capsules in the mucous membrane of 



