soft corals text index | photo index
Phylum Cnidaria > Class Anthozoa > Subclass Alcyonaria/Octocorallia > Order Alcyonacea
Knobbly soft coral
Carijoa sp.
Family Clavulariidae
updated Aug 10

Where seen? This colony of bumpy animals is commonly seen on some of our Northern shores, but often overlooked as it resembles a plant. It grows on large boulders, jetty pillings and other hard surfaces.

Features: 5-8cm long. The colony comprises a cluster of sparsely branched stems, forming short bushes or bushy fringes on hard surfaces. Each stem has large polyps in capsules (about 1cm long) regularly arranged along the length. Colours seen include white, beige and bright orange. The colony is often overgrown with encrusting sponges and ascidians.

Sometimes mistaken for a sea fan (Order Gorgonacea) or a hydroid (Order Hydrozoa).

East Coast, Jun 09

Pulau Sekudu, Apr 06

Knobbly soft corals on Singapore shores


Keppel Bay, Oct 09


Changi, Jul 07


East Coast, Jun 09

East Coast, Jun 09

East Coast, Jun 09

Banded hermit crab clinging on.

more photos of knobbly soft corals on Singapore shores

*Species are difficult to positively identify without closer examination.
On this website, the animals are grouped by external features for convenience of display.


Acknowledgement
Grateful thanks to Chandran Rethnaraj for identifying this animal.

References

  • Fabricius, Katharina and Philip Alderslade, 2001. Soft Corals and Sea Fans. Australian Institute of Marine Science and the Museum and Art Gallery of the Northern Territoriy. 264 pp.
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