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Pimply
leathery soft coral
Lobophytum sp.*
Family Alcyoniidae
updated
Mar 2020
Where
seen? This large leathery soft coral often resembles a pile of pimply rubber gloves at low tide. It is
seen on our Southern shores, on coral rubble.
Features: Colony 20-40cm or larger. The colony usually looks like a mushroom;
with a flat, broad disk attached to a hard surface by a very short,
very broad central base. The edge of the disk usually is fringed with
long cylindrical finger-like protrusions. When out of water, the colony
flops over and may look like a pile of discarded rubber gloves! There
are usually no radiating ridges on the disk. The leathery common tissue
in pastel shades of beige, yellow, pink, green, lilac.
The colony has both feeding polyps (autozooids) and water pumping
polyps (siphonozooids). Autozooid polyps have short fat body columns
(about 1cm) with 8 branched tentacles that are usually white. The
siphonozooids do not emerge from the body membrane, but form low 'pimples'
on the surface. Siphonozooids function to pump water through the colony.
The autozooids can retract completely into the common tissue. Out
of water, the surface of the common tissue has two different kinds
of holes; bigger ones where the retracted autozooids are, and smaller
holes or bumps where the siphonozooids are.
Sometimes confused with Smooth
leathery soft coral (Sinularia sp.) which does not have
siphonozooids and thus has a smooth common tissue. |
Pulau Semakau, Sep 05 |
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Pulau Hantu, Apr 06
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*Species are difficult
to positively identify without close examination.
On this website, they are grouped by external features for convenience
of display
Pimply
leathery soft corals on Singapore shores |
Other sightings on Singapore shores |
Beting Bemban Besar, Mar 20
Photo shared by Marcus Ng on facebook. |
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Pulau Biola, Dec 09 |
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Terumbu Salu, Jan 10 |
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Terumbu Berkas, Jan 10
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Pulau Pawai, Dec 09
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Pulau Senang, Jun 10
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Pulau Salu, Jun 10 |
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Links
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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