mature proglottid of Diphyllobothrium latum showing the scattered,, brownish, vitellaria or yolk glands, a distinguishing feature of pseudophyllideans. The pink, scattered bodies are testes.  The dark body is the sac-like uterus filled with egg capsules, leading to the uterine pore, a spherical body seen above the uterus.  The two ovaries can be seen as pink bodies to the left and right of the more lightly-stained portion of the uterus.  100x