mature proglottid of Taenia saginata.  The genital pore can be seen on the left margin.  The two bold horizontal lines are the vas deferens from the male system (upper) and the vagina (lower) leading to the ootype which is surrounded by the Mehlis gland. The ovary can be seen directly to the left of the Mehlis gland (granular and somewhat darker).  Adjacent to and surrounding the ovary are granular testes (somewhat lighter).  The lower margin of the image, reveals the flattened and granular, but compact vitelline gland.  100x