I am currently reading F.E. Lloyd's old botanical classic The Carnivorous Plants. I just finished the section on carnivorous fungi and esp. Dactylella bembicoides, which slips its noose-like trap over the heads of certain nematodes, strangles them, injects them with a protoplasm with dissolves their guts, and then sssssssucks out nourishment, leaving behind an empty husk.
Damn this book rocks!
My only caveat is that Lloyd refuses to acknowledge the existence of the Man Eating Tree of Madagascar. The Fool!