EIGHTH ANNUAL REPORT. 133 
in an orang-utan, and also in a chimpanzee, in which they occurred 
in such numbers as to cause a fatal intestinal obstruction. 
An unidentified Ascaris from a black leopard (Felis pardus). 
This parasite resembles the Ascaris lumbricoides of man, but is 
somewhat smaller in diameter, but fully as long. 
Dochmius trigonocephala (Uncinaria).—Male, 9 mm. to 12 
DOCHMIUS TRIGONOCEPHALUS, MALE 
Caudal pouch magnified. 
mm. long; female, 9 mm. to 15 mm. long; caudal pouch trilobate, 
the middle lobe being slender; tail of female obtuse; eggs ovoid. 
This parasite has, I understand, been very disastrous to a recent 
importation of blue foxes (Vulpes lagopus) from Alaska in one 
of our prominent American zoological gardens. 
Only two cases of this troublesome worm have come under my 
observation among the Park animals. 
Of these cases, one of them was a Mearns’ coyote, on autopsy. 
