250 
EXTRACTS FROM FOREIGN .ToURNALS 
This parasite was remarkable by its orbicular shape, discoidal, 
with concave ventral face, covered by hundreds of little papillo- 
ventruses ; with smooth and rounded dorsal face ; presenting an¬ 
teriorly a buccal ventruse at the extremity of a small neck, and 
a second ventruse, much larger, at the opposite extremity, to the 
posterior border of the body. 
The parasite has been recently found at Guadaloupe, on a 
mule, the third one, which died of a disease so rapidly fatal that a 
case of poisoning was suspected. The parasites were found in 
very great numbers, covering the digestive mucous membrane, 
from the pharynx To the anus, its species being easily recog¬ 
nized, thanks to the report of Mr. Cobbold. We, however, ob¬ 
served, some slight errors in the description he gave of it: for 
instance, he places the genital pore in the middle of the neck, 
while it is at the base of that region on the ventral face, and gen¬ 
erally concealed by a fold of the border of the body; this border 
is thin and membranous all round ; it shrinks ordinarily in 
alcohol, which makes the ventral face of the animal look as if 
hollowed out and thick at its border. Cobbold describes it in 
this manner, while in reality the ventral face is flat, and continues 
without interruption with the thin membraneous border of the 
body, which is spread in all directions as the fins of a turbot, of 
which this parasite represents almost a miniature. The dimen¬ 
sions are from 13' to 15 millimetres in length, and from 10 to 12 
in width, the difference being entirely due to the length of the 
neck. The member of the papillo-ventruses, which cover the in¬ 
ternal face of the body, is about 450. 
The parasites of the trematodes order are very rare in the 
horse; this is analogous to the amphistomium conicum (Dies) 
which lives in the digestive organs of the ox, but which is far 
from being as dangerous .—Society of Biology. 
SPLENIC FEVER ABROAD. 
The S. S. “ Iowa ” from Boston has lately landed 804 head 
of cattle alive, and one dead, at Birkenhead. Forty-three died 
during the passage across and were thrown overboard. On be- 
gining to slaughter, it was found that some of the cattle were 
