Spotted Jelly

Found singly, during the day in shallow coastal bays, harbours, lagoons, and marine lakes, descending to deeper waters at sunset.
Widespread Atlantic Ocean, Caribbean, South Pacific Ocean

These Jellies have been introduced to the Western Atlantic.

Jellyfish are 95% water.
They have no heart, brain, blood, or gills. The body of the Jellyfish is called a bell. They do have a mouth, tentacles and arms around their mouth. They use their arms around their mouth to help sense and find food that ends up inside their mouth.