Phylum Cnidaria > Class Anthozoa > Subclass Alcyonaria/Octocorallia > Order Gorgonacea
Skinny sea fans
Astrogorgia sp.*
Family Plexauridae
updated Mar 13

Where seen? This sea fan with long, skinny branches are sometimes seen in numbers on our Northern shores, including Changi and even the East Coast. On coral rubble, rocks, stones and in sand.

Features: 10-20cm long. Generally with long branches without much side branching. In some colonies, the long branches are neatly and evenly spaced along the central stem on one plane so the whole colony looks like the veins of a leaf. But in some large colonies, the long branches are tangled. Stems long, skinny and somewhat flattened. Colours seen include red, maroon, orange and yellow. The white polyps are relatively large (0.5cm) compared to the stem and emerge on opposite edges of the flattened stems.

Those seen on our shores often have all kinds of small animals clinging onto to them including tiny colourful brittle stars, transparent shrimps and ovulid snails.

East Coast, Jun 06


Changi, Jul 09

Changi, May 06

Pulau Sekudu, Aug 06

Chek Jawa, Jul 05


Tiny colourful brittle stars.
Changi, Jul 09

Red flatworm?
East Coast, Dec 08

Ovulid snails
East Coast, Jun 06

Skinny sea fans on Singapore Shores

Photos for free download from wildsingapore flickr

more photos of skinny sea fans on Singapore shores

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

Links

References

www.flickr.com
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