CLASS SCYPHOZOA

Models showing ‘Alternation of Generations’ in Scyphozoan jellyfish.

1. Fertilised egg settles.

2 – 5 Egg develops into a polyploid feeding larva with tentacles.

6. The polyp begins to divide horizontally (strobilate) to form a scyphistoma.

7. The scyphistoma develops into a stack of small medusae - the ephyrae.

8. The ephyrae are released individually into the plankton.