here some pics of an Acineta gen Tokophrya i think!
i found this in my acquarium!
object. 25x - 40x Nomarki DIC Zeiss. canon a540is


below is the link of a video of this kind of organisms that i got two years ago..it was 68min lenght and i accelerate it to make visible feeding of this Suctoria organisms:
http://www.youtube.com/watch?v=2pSuCa080Ic
best
arturo