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| hard corals text index | photo index |
| Phylum Cnidaria > Class Anthozoa > Subclass Zoantharia/Hexacorallia > Order Scleractinia > Family Faviidae |
| Big
ring coral awaiting identification * Family Merulinidae updated Nov 2019 Where seen? This boulder-shaped hard coral with large circular corallites are sometimes seen on our shores. Features: Colonies seen 10-15cm. The colony is generally a smooth boulder shape. The corallites have separate walls. In some, the corallites are squashed next to one another, resulting in an irregular pattern of circles and ovals. The walls are thick with regular ridges and no big 'teeth' sticking out. The polyps are fleshy with many short tentacles. Colours seen include shades of blue, purple and green. Some species of corals recorded in Singapore that have these patterns include: Barabattoia, Favia, Favites and Montastrea species. It's hard to distinguish them without close examination of small features and they are grouped here by large external features for convenience of display. |
 Pulau Hantu, May 05 |
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 Pulau Hantu, Apr 06  Bleaching. |
 Terumbu Bemban, Jun 10  Bleaching. |
 St. John's Island, Aug 05  |
*Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display.
| Big ring corals on Singapore shores |
On wildsingapore
flickr
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| Other sightings on Singapore shores |
 South Cyrene, Oct 10 |
 Pulau Berkas, May 10 |
 Raffles Lighthouse, May 04 |
 Pulau Sudong, Dec 09 |
 Pulau Salu, Jun 10 |
 Pulau Salu, Jun 10 |
 Terumbu Berkas, Jan 10  |
 Terumbu Berkas, Jan 10  |
 Terumbu Salu, Jan 10  |
 Pulau Pawai, Dec 09  |
 Terumbu Salu, Jan 10  |
 Pulau Salu, Aug 10  |