214 DISEASE IN WILD MAMMALS AND BIRDS 
colon A\4tli such swelling of the wall as to prevent reduc- 
tion. The exciting cause seemed to be an enteritis, the 
cause of death a peritonitis. A white-collared mangabey 
{Cercocebus collaris) was the victim of volvulus probably 
favored by an anomalous position of the transverse and 
descending colon which lay to the right, the latter 
traversing the abdomen obliquely from right to left to 
reach the pelvis. The volvulus occurred in the ileum just 
above the cecum, the twisted part being found adherent 
by the peritonitis. The third case is a strangulation due 
to peritonitis from filaria and adliesions between stomach 
and colon from a coUtis and pericolitis due to cestodes, 
one of which was found deeply implanted in the 
colonic wall. 
Two cases of intussusception are noted (after deduc- 
tions above) for the Carnivora. They both occurred in 
the ileum, one restricted thereto, the other extending into 
the colon. In both a vague history of being *' off their 
feed " or giving evidence of intestinal trouble could be 
obtained from the keeper. The three excluded cases had 
invaginations in the middle and lower small intestines 
but not at the cecal valve. Volvulus did not occur in 
the Carnivora. 
A paradoxure (Paradoxurus hermophrodifus) died as 
the result of a strangulation of a six-inch knuckle of gut 
which had passed through a hole in the omentum. The 
animal had not been eating well for a month but gave no 
signs by which this ileus could have been diagnosed. Per- 
haps it had existed for sometime but only shortly before 
death had swollen sufficiently to cause obstruction. 
Having excluded a doubtful invagination in a small 
rodent there remains an interesting though somewhat 
obscure case in a porcupine (Erethizon dorsatus dor- 
satus). This animal suffered with an acute hemorrhagic 
and catarrhal enteritis while the colon seemed free of 
change until the rectum was reached. Here was a stretch 
of a foot with the purple, lusterless but translucent 
