Diseases of the Respiratory Organs. 31 
described upon the mucous membrane about the bifurca- 
tion are very distinct, and the worms can be seen in them. 
The appearance is very like that met with in Case 4, and 
the description 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 papille; tail of female obtuse, 
anal and generative orifices terminal, opening by a cloaca ; 
ovarian tube containing one row of eggs, which, in the ma- 
ture species, have developed into slender-coiled embryos ; 
tail of the male somewhat pointed ; penis consists of a 
double spiculum of a yellowish-brown colour ; mode of re- ; 
production viviparous. . 
“ Only occasionally,as stated above, were the worms found 
lying free upon the bronchial membrane ; asa rule, theylay 
imbedded in a localised granular swelling of the mucosa, 
Fic. 2. 3 
Head of Male Tail of Female Worm, 
Worm. showing the young Embryos. 
from which portions of them protruded. They could readily 
be pulled out witha pair of fine forceps, but a stream of water 
did not wash them away. In severalof the cases examined 
