The Hay's Spring Amphipod is a tiny aquatic crustacean with both swimming feet and jumping feet. This shrimp-like, colorless freshwater crustacean is 10 millimeters (.39 inches) in length with a flat body and no eyes. It is a detritivore, which means that it feeds on organic debris from decomposing plants, animals, and fecal material. Little is known about its reproductive cycle. The habitat of Hay's Spring Amphipod is a ground water outlet that feeds into a low gradient creek; it is hard to know more about the habitat of this creature because it is so inaccessible.