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Starry
leathery soft coral
Awaiting identification*
Family Alcyoniidae
updated Dec 11
Where
seen? This leathery coral with polyps like
little glass stars is sometimes seen on some of our shores. Among
coral rubble and sandy areas near reefs.
Features: The colony about
10-15cm in diameter. Sometimes covering large areas of 50cm or more.
The
colony is usually thick, disk-like with a highly ruffled edge that
extended into fingers or lobes. The leathery common tissue usually
has many short, fat spindle-shaped structures usually paler than the
common tissue which is usually beige, pinkish or yellowish.
It has only one kind of polyp (autozooid) although there are very
tiny spots among the autozooids giving the leathery common tissue
has a rather 'crystalline' appearance. The transparent polyps are
tiny (0.2cm), 8 short cylindrical tentacles with tiny branches, the
body column hardly seen. The autozooids are only found on the upper
side of the common tissue and tend to be clustered on the edges of
the disk, with fewer in the middle of the disk. The autozooids can
retract completely into the common tissue.
During one night trip, a large colony was seen with many tiny
brittle stars all over the surface. This has not been observed
during daylight visits.
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Terumbu Berkas, Jan 10

Many fat, spindle shaped structures.
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Terumbu Bemban, Jul 11
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Starry
leathery soft corals on Singapore shores

Pulau Jong, Jul 07
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Cyrene Reef, May 08
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more photos of starry leathery soft corals on Singapore shores
part 1 | part 2
| part 3 | part 4
*Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience
of display.
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References
- Fabricius,
Katharina and Philip Alderslade, 2001. Soft
Corals and Sea Fans
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Australian Institute of Marine Science and the Museum and
Art Gallery of the Northern Territoriy. 264 pp
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