28 THE MANAGEMENT AND DISEASES OF THE DOG. 



borders of the anterior and middle lobes for almost two inches 

 from the fnargin, and a broad strip along the upper part of 

 the posterior lobe. 



"Trachea and bronchi healthy ; mucous membrane of the 

 tubes in the affected parts congested, but no parasites in the 

 membrane or in the long tissue. 



" Stomach and intestines appear natural ; a few ascarides 

 in the latter. Nothing abnormal found in the blood. 



" Case 7. — Dog pup, seven months old. The autopsy, 

 which was made at the same time as the previous case, reveals 

 a similar condition of the lungs, and an entire absence of any 

 parasites either in the tubes or in the parenchyma of the lungs. 

 Nothing unusual in the abdominal organs. The taenia ellipti- 

 ca and five or six ascarides in the jejunum., 



" Case 8.— A fine, well-grown dog pup, eight months old. 

 Had been ill a week. 



" Lungs contain pneumonic areas of considerable extent; 

 in the right involving the entire apex with, the dependent bor- 

 der, and a small portion of the posterior lobe near the dia- 

 phragm. In the left lung almost the whole of the middle 

 lobe, and the root of the posterior, are especially affected. 



" On opening the windpipe the discrete elevations above 

 described upon the mucous membrane about the bifurcation 

 are ver}' distinct, and the worms can be seen in them. The 

 appearance is very like that met with in Case 4, and the de- 

 cription need not be repeated. No parasites in the intestines. 

 Nothing abnormal found in the blood. 



" The general and specific characters of the worm may be 

 defined as follows : 



" Strongylus canis bronchialis. — A slender nematode hel- 

 minth, body filiform, the female measuring about one-fourth 

 of an inch in length, the male smaller, measuring one-sixth to 

 one-eighth of an inch ; head conical, mouth simple, unprovided 

 with papillae ; tail of female obtuse, anal and generative ori- 

 ces terminal, opening by a cloaca ; ovarian tube containing 

 one row of eggs, which, in the mature species, have developed 



