I also had a little time to take another peek at yesterdays pond sample.
The first is Holophrya discolor (Thanks to Martins correction and ID below).
The second subject is a Lacrymaria. Unfortunately this picture doesn't even begin to tell the story of the most amazing aspect of this critter. The degree to which it can extend it's neck when looking for food is simply astounding. Here's a link to some pictures I took 5 years ago that really show this (technically not the best images but worth a look). If you've never seen this before, you're going to find it hard to believe:
http://www.photomacrography1.net/forum/ ... php?t=4061
Don't know what the ciliates in the last picture are.

Olympus BHS. Zeiss 40/1.0 Plan Apo (oil). Olympus 1.67X NFK. Canon 50D. DIC with electronic flash.

Olympus BHS. Olympus 60/1.40 S Plan Apo (oil). Olympus 1.67X NFK. Canon 50D. DIC with electronic flash.

Olympus BHS. Zeiss 40/1.0 Plan Apo. Olympus 1.67X NFK. Canon 50D. DIC with electronic flash.

Olympus BHS. Olympus 20/0.80 D Plan Apo UV (oil). Olympus 1.67X NFK. Canon 50D. DIC with electronic flash.

edit... corrected the ID for the first two pictures