Hard Corals; Scleractinia

Scleractinian Hard Corals are what most snorkellers and scuba divers understand as “corals”. They make up the solid structure of the reefs of Koh Phangan. Providing a fabulous variety of shapes and sizes of calcium carbonate exoskeletons.

Acroporidae family

Staghorn and Table corals from the genus Acropora, plus the Alveopora, Astreopora and Montipora hard corals. (6 Galleries)

Agariciidae family

Reef building hard corals - often with laminar or foliate structures.

Dendrophylliidae family

Crater, Cup, Stony and Turbinaria Hard Corals. Many feature quite large flower-like corallum when feeding. (4 Galleries)

Diploastreidae family; Honeycomb Coral

We used to call this Star Coral, as during the day its corallum are retracted and it looks like a massive network of small pinky-red stars.

Euphylliidae family; Bubble Coral plus

Originally only the Bean or Bubble Corals - now we have Starburst Corals as well! (2 Galleries)

Fungiidae family; Mushroom Corals plus

Most members of this family are not anchored to the substrate and do look quite like mushrooms. (4 Galleries)

Lobophylliidae family

A newly created family of large polyped hard corals that includes the brain corals. (1 Album, 2 Galleries)

Merulinidae family; Maze and Star Corals

Another newly created family, containing quite a few ex-members of the Faviidae (a family now restricted to the Atlantic following genetic research). (7 Galleries)

Plerogyra family: more Bubble Corals

Wrongly listed at first in the Euphylliidae Bean/Bubble Corals.

Pocilloporidae family; Cauliflower Coral

Identified by the presence of wart-like growths on their surface and a brush like appearance when feeding. Branching in structure.

Poritidae family; Pore and Anemone Corals

3 apparently different reef forming hard corals. One with a massive structure and small corallum - the other relatively small but with greatly extended corallum. (3 Galleries)

Other Scleractinian Hard Corals

Some individual species of hard coral that are not members of the larger families listed above.

Mixed Hard Corals

Some nice reef views featuring a mixture of hard corals.