The moon jellyfish is almost entirely translucent, usually about 25–40 cm in diameter, and can be recognized by its four horseshoe-shaped gonads, easily seen through the top of the bell. It lives in ocean water with optimum temperatures of 9–19 °C.

It prefers temperate seas with consistent currents. It is capable of only limited motion, and drifts with the current, even when swimming.It feeds on plankton that includes organisms such as mollusks, crustaceans, protozoans, diatoms, eggs, fish, and other small organisms that captures with its tentacles, and bringing them into its body for digestion. The food is caught with its nematocyst-laden tentacles, tied with mucus, brought to the gastrovascular cavity.

In Asia, particularly in China and Indonesia, it is used for human consumption. It is usually boiled and macerated with sesame oil.

Conservation status

Not Evaluated