Many jellyfish start life attached to rocks and algae in quite shallow water. At this stage they look like very tiny, delicate anemones and are called scyphistoma. They seem to prefer darker places such as overhangs and the roofs of caves where they can exist in huge numbers. Small larvae bud off from these and drift along eventually becoming full sized jellyfish. These are likely to be the polyps of either Aurelia aurita, the Common Jellyfish or of one of the larger jellyfish in the family Cyanea

Many jellyfish start life attached to rocks and algae in quite shallow water. At this stage they look like very tiny, delicate anemones and are called scyphistoma. They seem to prefer darker places such as overhangs and the roofs of caves where they can exist in huge numbers. Small larvae bud off from these and drift along eventually becoming full sized jellyfish. These are likely to be the polyps of either Aurelia aurita, the Common Jellyfish or of one of the larger jellyfish in the family Cyanea