Fluke of Man
For your consideration:
Vintage giant intestinal fluke preserved in lucite with tag that reads "Fasciolopsis buski (Giant Fluid of Man)."
Commonly called the giant intestinal fluke, it is the largest to parasite humans.
Size of lucite block: 2-3/8 inches wide x 2-3/8 inches tall.
Condition: Yellowing from age, scratching and a chipped corner.