This is a few of a Kinorhyncha larva through the microscope. It was found in a substrate by a lake on the NC/SC border. The larva was floating around, probably looking for food.
I am unable to identify the animal any further since it is in it’s larval stage and it is so small.
According to the Encyclopedia of Life, “they move and burrow by forcing body fluid into its head to extend the head into the substratum, anchoring the anterior spines, then pulling the rest of the body forward.” – that sounds very uncomfortable if you ask me 😉