A water sample was taken from the shore of pond channel in Tauride Garden. The sample had been in room temperature storage until re-assayed.
Thin body form is typical of most nematodes, but they range in size from a fraction of a millimeter to meters (the parasitic ones). A mouth opens at the front, leans to a muscular pharynx and then into the guy (here made visible by dark ingested bacteria). The anus is near but not at the back end.