A couple more ciliates I need help with.

[D0c]

A couple more ciliates I cannot identify and would like a little push in the right direction.

I've narrowed the first one to either Paramecium Bursaria or Frontonia. The speciman was large and moved very fast the video was taken at 100X

https://www.flickr.com/photos/154534235 ... ateposted/

The second has me stumped I've searched all my online guides and it's either some sort of Colpoda sp or a deformed ciliate. It looks like the ciliate has digested diatoms.

https://www.flickr.com/photos/154534235 ... ateposted/
https://www.flickr.com/photos/154534235 ... ateposted/

Thanks

[Bruce Taylor]

The first one is a species of Frontonia. We don't see the mouth, but the cell is flattened, ovoid, not rotating in motion; we see trichocysts and a subtly pointed posterior. The diet and feeding behaviour (rubbing up against debris like a cat) is very typical.

The second video is a deformed or damaged ciliate. Your best hope of identifying it is to look for healthy specimens in the same water.