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| corallimorphs text index | photo index |
| Phylum Cnidaria > Class Anthozoa > Subclass Zoantharia/Hexacorallia > Order Corallimorpharia |
| Frilled
corallimorph Rhodactis inchoata Family Discosomidae updated Jul 2024 Where seen? This little animal with a delicate fringe around the edge of its disk-shaped body is sometimes encountered on our Southern shores, in coral rubble areas. Features: Each polyp about 2-4cm in diameter, usually in small groups of 5-10, sometimes many more. When submerged, the expanded polyps may be crowded next to one another so that each forms folded polygonal shapes. So it is sometimes mistaken as a hard coral. |
 Cyrene Reef, Jun 08 |
 Clusters of very short branched tentacles on the oral disk. |
| Short fine tentacles fringe the outer edge of the oral disk. On the
disk itself, short, clusters of very short branched tentacles are
arranged in rows radiating from the mouth in the centre. The mouth
is usually held upturned and is then quite prominent. The underside is smooth and brown. The animal can tuck its oral disk into the body column when it is exposed out of water. Seen in a wide range of colours: from pale to bright green to blue, also with brown tentacles. Status and threats: As at 2024, it is assessed not to be approaching the criteria for being listed among the threatened animals in Singapore. |
 St. John's Island, Aug 07 |
 Oral disk edged with fine tentacles. |
 Oral disk tucked into the body column. |
 Sisters Island, Jan 06  |
 Sisters Island, Feb 10  |
 Pulau Jong, Jul 06  |
*Species are difficult
to positively identify without close examination.
On this website, the animals are grouped by external features for convenience
of display.
| Frilled corallimorphs on Singapore shores |
On wildsingapore
flickr
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| Other sightings on Singapore shores |
 Labrador, Aug 17 |
 Pulau Senang, Jun 10 |
 Bleaching. Pulau Berkas, May 10 |
 Pulau Berkas, May 10  Bleaching. |
 Terumbu Berkas, Jan 10  |
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Links
References
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