Rhopilema nomadica, (nomad jellyfish) is a jellyfish living native in tropical warm waters of Indian and Pacific Oceans. Since 1970's it has been also found from Mediterranean Sea where to it has entered via Suez Canal. It has been found in Israel, Turkey and Greece. Its body is light blue and the bell is rounded. It can grow up to 10 kg of weight, and its bell is commonly 40-60 cm in diameter, but can be up to 90 cm. European Union lists it as one of the worst invasive marine species in European waters.
Effects to humans
The Rhopilema nomadica can cause very painful injuries to humans, since it has vermicular filaments in the mouth arms.