|A Nematode, also known as a Roundworm.
Found at the Fountain Creek Nature Center, in one of their ponds, on 8 October 2008.
A few days later, I put it under my microscope. While it still had water, it was
stretched out to almost 5mm, but so thin that it is barely visible to the naked eye.
But it kept swimming so fast that I could not get a picture of it. Once the drop
of water dried out, it contracted and was no longer transparent, but it kept still so
I could focus on it and get this picture. While it was alive, it was transparent so
that all the internal parts were clearly visible.
I am not positive of the class Secernentea, and there are over 80,000 different named species.