The Mosaic Jellyfish is also known as Scyphozoa Aurelia. Mosaic jellyfish are able to reproduce sexually and asexually. One form of reproduction is fertilization. The female carries her eggs in her mouth or in her stomach. The male jellyfish releases its sperm into the water. When the sperm comes into contact with the eggs, they get fertilized. The fertilized eggs are stored in pouches in the female's stomach. The larvae then transform into tiny planulae that detach themselves from their mother's body. Due to the planulae's inability to swim, it sinks to the ocean floor. Once it reaches the ocean floor, the planulae becomes a polyp. Over time a new polyp is transformed from the first polyp. This process is repeated several times until a colony of polyp are created. When conditions are right the colony begins to transform itself. Horizontal grooves appear on the outside of the colony. The topmost groove then detaches itself from the colony and becomes an ephyra. After the ephyra stage the animal enters the medusa stage where the jellyfish grows into an adult.
This picture shows a polyp at the ocean floor.