Anemones, corals, jellyfishes and hydroids are collectively known as cnidarians. They are an ancient group with a history that reaches back more than 650 million years, and with over 10,000 known species.
Bluebottles differ from true jellyfishes in several ways.
Cubozoans have a box-shaped bell with tentacles at each corner.
Scyphozoans are sometimes referred to as 'true jellyfish'.
The Class Anthozoa contains the sea anemones and corals.
The Marine Invertebrates Collection includes many specimens.
Jellyfish, anemone and coral photos
1 William Street
NSW 2010 Australia