The creature’s body typically ranges from 1 to 5 millimeters in length and is segmented. It is transparent, with compound eyes. The fused head is bent downward toward the body, featuring a noticeable notch. Surrounding the body is an uncalcified shell called the carapace, which contains two walls through which hemolymph flows. Additionally, it possesses two abdominal setae and reproduces through parthenogenesis.