adult Dicrocoelium dendriticum with prominent posterior testes (branched structures),paired vitelline glands (lateral) and ovaries and ootype (red, anterior to midline).  This is known as the liver lancet of cattle.
40x

anterior end of D. dendriticum showing the uterus, outlined with the blackened egg capsules.  This worm's metacercaria infects ants and alters their behavior in such a way as to increase the possibility of them being eaten by a cow, the definitive host.  100x