52 
but the ceca reunite caudally of, but near the ovary. Tterus rather straight, ends 
posteriorly in a bulb-like ootype, immediately posterior of which the shell gland, 
oviduct, and vitelloducts-come together; ovary sacular, elongate; vitellaria extend 
from near the caudal end of the ovary to the caudal end of the body, and are 
provided with lateral acini. Eggs oval, 135 to 160 long by 55 to 66 j-i broad; 
without operculum, but usually with terminal or subterhiinal spine; develop ciliated 
embryo in tissue after oviposition. 
Habitat. — Veins of man {Homo sapiens) and certain monkeys. 
Geographic distributiox. — Chiefly in Africa; sporadic imported cases in other 
countries. 
IV ASHIXGTON, D. C., August, 1903. 
