Ball
sea cucumber
Phyllophorus sp.
Family Phyllophoridae
updated
Apr 2020
Where
seen? This spherical sea cucumber is commonly seen on our Northern shores. It is usually buried in sandy areas near seagrasses, often many near one another.
Sometimes, it may also be found washed up on the shore hidden among
the seaweeds. Be careful not to step on these.
Features: 10-15cm. Body spherical. Those freshly dug-up are more
U-shaped ovals with the mouth and backside facing the surface. Colour white, beige, brownish
and sometimes orangey. Many tube feet and tiny filaments
(papulae) evenly cover the entire body. These help grip the sand and
keep the animal anchored underground. Feeding
tentacles translucent white with branched tips which are darker. Usually, only the feeding tentacles
stick out above the sand while the entire animal remains buried. |
Many often buried just beneath the surface.
Changi, Aug 15 |
Freshly dug up sea cucumber with
anus and mouth facing upwards.
Changi, Apr
05 |
Feeding tentacles from a buried sea cucumber..
Changi, Jul 07 |
Those found above ground tend to be round, sometimes inflated into
translucent white balls, sometimes floating in the water. Like
some other sea cucumbers, it will eject its guts if it feels threatened.
What does it eat? It gathers edible bits from the water
with mucus-covered feeding tentacles.
Status and threats: The Tennis-ball
sea cucumber (Phyllophorus spiculata) is listed as 'Vulnerable'
on the Red List of threatened animals of Singapore. In Singapore,
the main threat is habitat loss due to reclamation or human activities
along the coast that pollute the water. |
Rarely found above ground.
Changi, Jul 15 |
Feeding tentacles and long thin tube feet.. |
Those found above ground may be inflated into translucent balls and float in the water.
Changi, Nov 16 |
Ball
sea cucumbers on Singapore shores |
Other sightings on Singapore shores |
East Coast Park (B), May 21
Photo shared by Loh Kok Sheng on facebook. |
Berlayar Creek, Oct 15
Photo shared by Jonathan Tan on facebook. |
Berlayar Creek, Apr 23
Photo shared by Loh Kok Sheng on facebook. |
Kusu Island,
Sep 10
Photo shared by Loh Kok Sheng on his
blog. |
Lazarus Island, Feb 11
Photo shared by Loh Kok Sheng on flickr. |
Links
References
- Lane, David
J.W. and Didier Vandenspiegel. 2003. A
Guide to Sea Stars and Other Echinoderms of Singapore.
Singapore Science Centre. 187pp.
- Davison,
G.W. H. and P. K. L. Ng and Ho Hua Chew, 2008. The Singapore
Red Data Book: Threatened plants and animals of Singapore.
Nature Society (Singapore). 285 pp.
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