52 
but the ceca reunite caudally of, but near the ovary. Uterus 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 jj. broad; 
without operculum, but usually with terminal or subterminal spine; develop ciliated 
embryo in tissue after oviposition. 
Habitat. — Veins of man {Homo sapiens) and certain monkeys. 
Geogkaphic distribution. — Chiefly in Africa; sporadic imported cases in other 
countries. 
Washington, D. C., August, 1903. 
