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Mole
mushroom coral
Polyphyllia talpina
Family Fungiidae
updated Nov 2019
Where
seen? This rather velvety looking mushroom coral is sometimes
seen on some of our Southern shores. The coral is free-living (it
is not attached to the surface) and large ones may be seen on coral
rubble and among living corals.
Features: Skeleton longer than
broad (15-25cm long) usually with rounded ends. Sometimes also oval
and other irregular shapes. It has a central furrow but this is usually
not distinct in large old animals. The upper side has tiny short lines that form petal-shaped, radial
patterns, instead of parallel lines as in other mushroom corals. There
are mouths in the central furrow as well as scattered elsewhere on
the body. Tentacles are short, cylindrical to conical and white-tipped.
When the tentacles are extended, they hide the skeleton and give the
animal a furry look. 'Talpina' means 'mole' in Latin possibly refering
to this velvety texture which resembles the fur of a mole. Underside concave. Colours
seen include brown, grey, cream to blue, purple and green.
Veron considers it to be colonial rather than a solitary polyp. It
has many mouths all over the upper surface.
Sometimes confused with other
long mushroom corals. Here's more on how to tell
apart elongated mushroom hard corals. |
Sisters Island, Jan 06 |
Petal-like, radial patterns. |
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Underside
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Sentosa, Jul
05
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Sentosa, Jun
06
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Pulau Hantu,
Aug 03
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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.
Mole
mushroom corals on Singapore shores |
Other sightings on Singapore shores |
St John's Island, Apr 21
Photo shared by James Koh on flickr. |
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Bleaching.
Terumbu Semakau, Jun 10
Photo shared by Loh Kok Sheng on his
flickr. |
Terumbu Salu, Jan 10
Photo shared by Loh Kok Sheng on his
flickr. |
Terumbu Berkas
Besar, Jan 10
Photo shared by Loh Kok Sheng on his
flickr. |
Pulau Senang,
Jun 10
Bleaching. |
Pulau Salu, Apr 21
Photo shared by Loh Kok Sheng on facebook. |
Links
References
- Hoeksema,
Bert W. and Esther G. L. Koh. 30 Dec 2009. Depauration
of the mushroom coral fauna (Fungiidae) of Singapore (1860s-2006)
in changing reef conditions (pdf). Raffles Bulletin of
Zoology Supplement No. 22: 91-101.
- Danwei Huang,
Karenne P. P. Tun, L. M Chou and Peter A. Todd. 30 Dec 2009. An
inventory of zooxanthellate sclerectinian corals in Singapore
including 33 new records (pdf). Raffles Bulletin of Zoology
Supplement No. 22: 69-80.
- Veron, Jen.
2000. Corals
of the World Australian Institute of Marine Science, Australia. 3 volumes.
- Erhardt,
Harry and Daniel Knop. 2005. Corals:
Indo-Pacific Field Guide IKAN-Unterwasserachiv, Frankfurt. 305 pp.
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