Stentor ?

[frfmfrfm]

Good night, esperos your help. I think that may be stentor?
Regards, Francisco.

[frfmfrfm]

Good evening, I upload a video where you can better see the protozoan.
Regards, Francisco.

http://youtu.be/OHMEOQxNz4c

[reblaus]

The size would be interesting!
Regards
Rolf

[frfmfrfm]

Many grace by Rolf response.
About the size was large, I think it would have between 120 .mu.m and 150 .mu.m or more.
Poorly oxygenated and Spirostomum with water.

Regards, Francisco.