244 The Philippine Journal of Science 
posterior with five lobes; ovary in the median line in front of the 
testes, with three distinct lobes, two to the right and one to the 
left; large saclike receptaculum seminis behind the ovary; Lau- 
rier’s canal present; coils of the uterus extensive, filling nearly 
all of the middle half of the body; vitellaria lateral, extending 
from behind the ventral sucker to the level of the ovary, acini 
not in distinct groups, no distinct division into anterior and 
posterior portions; eggs, 28 to 30 u» by 11 nu. 
Habitat and distribution.—Specimens found in the bile ducts 
of domestic cats from Luzon, Philippine Islands. Since coming 
to Cebu to live I have examined many cats with the hope of find- 
ing this parasite, but so far I have not found it on this island. 
I have had no opportunity to look for it anywhere else in the 
Islands. 
The characters which distinguish this species from O. feli- 
neus (see Plate 1, fig. 1) are the relatively great length of the 
cesophagus, the distinct division of the testes and ovary into 
lobes, the simple arrangement of the vitellaria, and the greater 
extent of the uterine coils. 
