This is the midbody of the female Schistosoma mansoni with the anterior end toward the right.  The oval body seen in the middle is the ovary which gives rise to a posteriorly-exiting oviduct which swings around the ovary and then continues anteriorly. The slightly brownish duct is the vitelline duct.  100x

midbody of the female S. mansoni.  Vitelline glands are to far left and the ovary in the center.  100x