Mushroom Corals; Fungiidae family.

Please do not take mushroom corals from the sea when SCUBA diving or snorkelling, and don’t buy their dead relations if you see them on sale in gift shops in Thailand (or anywhere else for that matter).
As they say, take only underwater photographs as memories – and leave only bubbles!

After another re-shuffle, all the remaining Fungia are called fungites.

What you might call true mushroom corals...

Like chunky mushroom corals that have been stretched out.

These corals are not really mushroom-like at all!