Ecki showed an image of a cyanobacterium (cb) in the shell of a testate amoeba; apparentlty the cb was just an usurper.
HERE
Yesterday I saw what appeared to be a green circle racing around the bottom of my sample dish. On closer inspection it was seen to be a large ciliate with a coiled cb inside the ciliate's cell wall.
The ciliate is 360µ long; the cb much longer.
This raises several questions:
How did it get there?
Was it originally small and subsequently grew long in the ciliate?
Was it eaten?
Is it a parasite?
Any ideas for an ID of the ciliate?
Single frame with the ciliate besides an air bubble.
BHS DIC 20x SPlan Apo, 1.25x intermediate tube, 2.5x relay lens

NUM10139