seen? This boulder-shaped hard coral with small circular corallites are
commonly seen on many of our shores.
Features: Colonies seen 10-15cm,
sometimes larger, a smooth boulder shape. The corallites have separate
walls, although this may not be very obvious as the corallites are
packed quite close to one another. The walls have tiny, sharp protruding
'teeth'. The corallites are generally circular or a smooth oval. The
result is a regular pattern of small white circular holes with purple
walls. The polyp is fleshy with lots of short tentacles, oftern white
The corals on this page may not actually be of the same species. It's
hard to distinguish them without close examination of small features
and they are grouped here together for convenience of display.
*Species are difficult
to positively identify without close examination.
On this website, they are grouped by external features for convenience of
ring corals on Singapore shores
|Other sightings on Singapore shores