340 BOARD OF AGRICULTURE. 
Frequently, when no worms were discovered, the eggs were 
abundant in the thick mucus-looking fluid in the pelvis of 
the kidney. This fluid contained, besides eggs, desquamated 
renal tubules, or casts and oily granules. 
In no instance have I found worms in an immature state, 
which shows that the eggs, in all probability, go through some 
other host before they enter the swine, to become sexually 
mature.* 
The symptoms in hogs, which are referred to the ‘‘ kidney- 
worm,” are due to a paralysis of motion in the hind legs; 
the hog draws the hind quarters along the ground from place 
to place in search of his food, although it is by no means 
proven that the worm is the real cause, unless we be able to 
‘demonstrate its existence in some cerebro-spinal center, or 
some point more likely to destroy the reflex power in the cord 
itself. 
Structure.—The head and oral cavity are alike in male and 
female. The oral cavity is rather oval than round, and is 
surrounded by a hexagonal frame, each corner having a pa- 
pilla and hooklet, while each side is armed with six serrate — 
teeth. 
Looking into the oral cavity, it is funnel-shaped, having 
three openings at the back, one of which connects directly 
with the cesophagus, while the others appear to connect with 
the water vessels.. | 
The intestine is long and contains some pigment granules, 
arranged in dentritic forms, throughout its length ; the whole 
is thrown into convolutions, and gives an almost black ap- 
pearance to the worm, except when the white oviducts dis- 
tended with eggs, or the seminal vessels of the male are 
folded over the intestine, when it has a white, mottled 
appearance. 
The caudal extremity of the female is spindle-shaped, but 
has two little burse higher up. In the male it is formed by 
three-lobed burs, above which are two well developed flexi- 
ble spicula.”’ 
*It is quite as probable that they may hatch in water, and thus enter the hog’s 
stomach with its drink.—y. 
