Chilodonella
Ciliophora: Protozoans that Move with Cilia
The Chilodonella is part of the Phylum Ciliophora. View more Ciliophora here.
The Chilodonella belongs to the Phyllum Ciliophora. They are from 100-150µm long.
Shown below is a top and side view. They are very common in pond water samples and can occasionally be seen from the side "walking" along an object.
See also the tetrahymena which is sometimes confused with the Chilodonella.