Locomotion
The moon jelly extensively relies on water currents for movement. As a scyphozoa, it does not have a velum, the muscular part that contracts and propels water to aid in locomotion. It is able to contract a little with its hydrostatic skeleton, but it is not nearly efficient. Coronal muscle cells near the upper body aid in the small contractions of the moon jelly causing the pulsation effect (McHenry and Jed 2003). This can all be seen in the video below.