Frilly
anemones
Phymanthus sp.*
Family Phymantidae
updated
Nov 2019
Where
seen? These anemones with many fine 'branches' on their
tentacles are often seen on many of our shores. Among coral rubble,
usually with the body column wedged in crevices.
Features: Diameter
with tentacles expanded 8-12cm. Tentacles about 3-5cm long with elaborate
'branches'. Only one side of the tentacle appears to bear the 'branches'.
The anemones
come in a wide variety of colours and their branched tentacles may
have different patterns. Also
sometimes encountered are branched anemones with tentacles that
are generally smooth with only slight bumps.
The body column is pale becoming darker near the top and has longitudinal
rows of white verrucae.
The anemone can tuck its tentacles into its body column.
Sometimes mistaken for other feathery
animals. Here's more on how
to tell apart feathery animals on our shores. |
Beting Bemban Besar, May 11 |
Only
one side of the tentacle bears 'branches'. |
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Body column pale becoming darker
near the top with rows of white spots.
Pulau Semakau, Apr 08 |
St John's Island, Oct 20
Photo shared by Jianlin Liu on facebook. |
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Frilly
friends: The Frilly anemone harbours symbiotic algae
(called zooxanthellae) that undergo photosynthesis to produce food. The algae share this food
with the anemone, which in turn provides the algae with shelter
and minerals. A pair of Peacock-tail anemone shrimps were seen once in a Frilly anemone. |
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Bleaching
frilly anemone
Cyrene Reef, Jul 10 |
Bleaching
frilly anemone
Cyrene Reef, Aug 10 |
Some Frilly anemones on Singapore shores |
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Six
of the tentacles usually of a different colour.
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Tentacles
with bands.
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Tentacles
uniformly coloured 'branches' may be outlined in white.
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Tentacles
smooth, but with small branches visible.
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Mouth
with fine white lines radiating from the centre.
Tentacles with violet tips.
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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
Links
References
- Nicholas Wei Liang Yap et. al. "Sea anemones (Cnidaria, Actiniaria) of Singapore: redescription and taxonomy of Phymanthus pinnulatus Martens in Klunzinger, 1877" ZooKeys 840:1-20 https://doi.org/10.3897/zookeys.840.31390
- Erhardt,
Harry and Daniel Knop. 2005. Corals:
Indo-Pacific Field Guide
IKAN-Unterwasserachiv, Frankfurt. 305 pp.
- Lim, S.,
P. Ng, L. Tan, & W. Y. Chin, 1994. Rhythm of the Sea: The Life
and Times of Labrador Beach. Division of Biology, School of
Science, Nanyang Technological University & Department of Zoology,
the National University of Singapore. 160 pp.
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