Image Library [Last Modified: ]
Hymenolepiasis
[Hymenolepis diminuta] [Hymenolepis nana]

Proglottids of Hymenolepis spp.  Proglottids of Hymenolepis spp. are craspedote; i.e. they overlap.

H. nana proglottids H. nana eggs, H&E
A B

A: Cross-sections of mature proglottids of H. nana stained with hematoxylin and eosin (H&E), taken at 100x. Note the craspedote (overlapping) proglottids.
B: Higher magnification of eggs within the proglottid in Figure A, taken at 400x.

H. nana eggs, H&E Hymenolepis diminuta proglottids
C D

C: Higher magnification of the eggs in Figures A and B, taken at 1000x, oil.  Hooks do not stain with H&E but are refractile and may be visible in stained specimens with proper adjustment of the microscope.  Polar filaments are visible in the egg in the upper right quadrant of the image.
D: Proglottids of H. diminuta stained with carmine.  Notice the craspedote form of the proglottids.

 
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