nematoda. 831 



Tabulae Areangement of Entozoa. 



N. 0. Nematoda. 

 Genus Ascaris. ' 



(a.) A. megalocepliala of horse and ass ; found in the smJiU intestine, 

 occasionally passing from the duodenum to the gall ducts. 



(/>.) 'A. lumbricoides of man, pig, cattle ; found in small intestine. 

 The Ascaris of the pig is sometimes reckoned as a diSerent 

 species, viz., A. suilla. 



{c.yA. mystax of cat and dog ; rarely in man. Found in the small 

 intestine. The Ascaris of the dog is sometimes reckoned as 

 a different species, viz., A. marginata. 



Genus Eustronnylus. 



(a.) E. gigas of dog, horse, cattle, and very rarely man ; found in the 

 kidneys, bladder, and areolar tissue, beneath the peritoneum ; 

 sometimes free in the peritoneal cavity ; also in the heart of 

 the dog. 



Genus Filar ia. 



Species (a.) F. laeUrymalis of horse and ox ', found in the lachrymal 

 ducts. 



„ (&.) F. papulosa of the horse, ox, and ass ; found in the globe 

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

 usually in a cyst vrithin the cornea, also in the 

 peritoneal and thoracic cavities, in the diaphragm and 

 abdominal muscles, and in the arachnoid membrane 

 . of the brain. 



„ (c.) F. immitis of the dog ; found in heart, pulmonary arteries, 

 and blood, hence spoken of as Hcematozoa. 



„ (d.) F. trispinulosa of the dog ; found by Gescheidt in tlie 

 capsule of the crystalline lens. 



Genus Spiroptera {Filaria of some authors). 



Species {a.) S. megastoma of the horse ; found in tumours usually at 

 the cardiac end, more rarely at the pyloric end of 

 stomach ; when these tumours are pressed pus and 

 bundles of the worms are obtained. S. microstoma 

 of the stomach of the horse is considered as a large 

 varietj'' of S. megastoma. 

 „ (6.) S. sanguinolinta of the dog and Avolf ; found in tumours 

 of the oesophagus and stomach. 



