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