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INDO-PACIFIC Coral Reef 
cnidaria

The varied Cnidaria include the reef building corals, the sessile anemones, and the free floating sea-jellies...

Phylum Cnidaria: Sea Jellies, Corals, Anemones

Class Scyphozoa: 'True Sea-jellies'

Order Rhizostomae

These are Jellyfish that have eight divided arms hanging from the bell, rather than tentacles

Family Cassiopeidae: 'Upside down Jellies'

(Kakaban Indonesia)

Cassiopeia ornata, 'Upside-down Jellyfish'.

Class Anthozoa: includes Stony Corals, Soft Corals, Anemones

Sub-class Ceriantharia: Tube-dwelling 'Anemones'

(Kakaban Indonesia)

Tube-dwelling Anemone

Updates
Well it looks like my first trip after the virus now might be as an Expedition leader in Tasmania with Coral Expeditions. If you can't go travelling until everything settles down, then until then, here I am doing online guided walks for Noble Caledonia and online lectures for Silversea.