A very large ciliate

[Olympusman]

A very large ciliate -- almost as large as many copepods. For reference, in this shot the fuzzy blob to the lower right is a stacked rotifer.

[arturoag75]

where did you found it?

[Olympusman]

It was in a recent pond dip that I favored for its dependable population of non-testate amoeba. It's getting cold here in pennsylvania USA and I actually had to break the ice with my algae hook to get to the water.
This specimen had been moving around slowly and then it stopped and a bud of protoplasm came out and then it healed itself. I have seen this happen before where the protist got punctured by a worm or larva. This one stopped because it was either recovering or dying.