Atolla Jellyfish

The Atolla Jellyfish (Atolla wyvillei) or Coronate medusa, is a species of deep-sea crown jellyfish (Scyphozoa: Coronatae). Oceans all across the world are home to it. It normally has 20 marginal tentacles and one larger-than-the-other hypertrophied tentacle. It is believed that this lengthy trailing tentacle makes it easier to capture prey. It is bioluminescent in this species. When threatened, it will flash repeatedly in an effort to attract predators who will be more interested in the assailant than it is in itself. The animal acquired the moniker "alarm jellyfish" as a result of this.

Atolla wyvillei has a bell-shaped body and many somewhat long tentacles that run the length of the bell. The bell's diameter ranges from 20 to 174 mm. Its coloring is a rich shade of red, like many other kinds of mid-water creatures. The digestive, respiratory, circulatory, and central nervous systems of these jellyfish are all absent. It has no brain since it has no central nervous system.