THE ANIMAL PARASITES 647 
Cysticeecus tenuicollis. — ^We have noted this blad- 
der worm in the Aoudad (Ovis tragelapJius), Red River 
Hog (Potamochoerus porcus), domesticated Angora 
Goats and several deer (Cervus alfredi, Capreolus capre- 
olus, Manama mexicana, M. hemionus) located with one 
exception in the peritoneal cavity or membrane. One of 
the mule deer {Masania hemionus) exhibited the parasite 
also in the lung and liver. This parasite is discussed 
because the very valuable Philippine spotted deer 
{Cervus alfredi) died from a peritonitis secondary to an 
infected cyst in the lesser omentum, and because the 
parasitism (Tcenia marginatum) is contractible from 
canidse which are also on exhibition in the Garden. It 
happens that the spotted deer did not become infested 
from the dogs, but it is quite probable that the goats did, 
since they passed many times daily in front of the wolf 
cages, drawing the children's carriages over the walks, 
and were stabled nearby. We have not discovered any of 
the other tapeworm cysts in deer which might be trans- 
mitted to them from the canidae. Camels which are parked 
directly opposite them have only exhibited echinococcus 
cysts, yet we have never found its adult form {Tcenia 
echinococcus) or its ova in the canine feces. The danger 
of fatal disease from C. tenuicollis, even though the inf est- 
ment be present, is remote ; but we feel that it is better, if 
possible, not to exhibit the canidse adjacent to sus- 
ceptible animals. 
Pulmonary Acaeiasis in Monkeys. — We have seen but 
two instances of this affection in the Philadelphia Garden. 
The offending parasite in our animals was a new species, 
Pneumonyssus foxi Weidman (32) . It occurred sparingly 
in small cysts under the pleura and was certainly benign 
in our cases. The importance of the infestment consists 
in part in that these lesions may be mistaken for tubercles. 
(32) Jour. Parasit., Sept., 1915, V. 2, pp. 37-45. 
