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Phylum Echinodermata > Class Holothuroidea
Ashy pink sea cucumber
Holothuria fuscocinerea
Family Holothuriidae
updated Apr 2020

Where seen? This long pinkish sea cucumber is sometimes seen on our Southern shores. Usually well wedged among living corals and coral rubble, usually alone. Seen mostly at night, only a short part of the front end cautiously sticking out. It is very sensitive and will retract into its hiding place at the slightest disturbance. The front end usually facing downwards against the ground, suggesting that it browses on edible bits that settle on the ground. Holothuria pervicax looks very similar. Teo Siyang, Lionel Ng and Loh Kok Sheng have identified it and it is a new record for Singapore! Elsewhere, it is found in lagoons, reef flats and on outer reef slopes of barrier reefs.

Features: 15-20cm long. Body soft long cylindrical with a distinct upper and underside. Underside flat pale with many short tube feet. 'Fuscocinerea' suggests 'dark' and 'ashy' and indeed, the sea cucumber does look like it has been rolled in ash. Upperside generally pale pink or beige with irregular dark blotchy bars or blobs along the length. Small dark-circled white spots all over the upperside, with tiny spiky protrusions in the centre of the white spots. Anus is distinctly ringed with dark brown or dark purple. Mouth facing down with 20 large feeding tentacles short white with bushy tips. When disturbed, it readily releases from its backside, many very thick sticky white cylindrical tubes called Cuvierian tubules.

Human uses: It is listed among the commercially important sea cucumbers of the world. This species does not have a commercial value in the western central Pacific; however, it is of commercial importance in China, Malaysia and the Philippines. In China, it is of low commercial importance. It is exploited in a multispecies fishery in Sri Lanka.

When disturbed, releases Cuvierian tubules.
Beting Bemban Besar, Jun 09

Tiny spikes on white circles.

Dark blotchy bars on upperside.

Anus ringed with dark brown.

Underside flat and pale.

Ashy pink sea cucumbers on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores


Tanah Merah, Oct 09
Photo shared by James Koh on his blog.

Tanah Merah, Oct 09
Photo shared by James Koh on his blog.


Tanah Merah Ferry Terminal, Jun 15
Photo shared by Loh Kok Sheng on facebook.
   


Berlayar Creek, Mar 20
Photo shared by Loh Kok Sheng on facebook.

Little Sisters Island, Sep 10
Photo shared by Marcus Ng on flickr.


Pulau Hantu, Aug 14

Photo shared by Loh Kok Sheng on his blog.


Pulau Hantu, Apr 21
Photo shared by Jianlin Liu on facebook.

Terumbu Pempang Laut, Mar 24
Photo shared by Vincent Choo on facebook.

Pulau Semakau East, Jul 15
Photo shared by James Koh on facebook.


Terumbu Bemban, Jun 20
Photo shared by Dayna Cheah on facebook.


Pulau Jong, May 10
Photo shared by James Koh on his blog.

Pulau Senang, Jun 10
Photo shared by Loh Kok Sheng on his flickr.

Pulau Pawai, Dec 09
Photo shared by James Koh on his flickr.

Links

References

  • Teo, S., C. S. L. Ng & K. S. Loh, 2010. New record of a sea cucumber, Holothuria (Stauropora) fuscocinerea Jaeger, 1833 (Holothuroidea: Aspidochirotida: Holothuriidae) in Singapore. Nature in Singapore, 3: 133-137.
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