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Phylum Echinodermata > Class Holothuroidea
Armoured sea cucumber
Psolidium sp.*
Family Psolidae
updated Dec 15

Where seen? This small sea cucumber is seen stuck very firmly onto rocks in dark places.

Features: About 1cm long, the upper side of the body is covered with hard calcareous plates. Body very hard, sausage shaped with a very flat base (creeping sole). Much like a limpet, it clamps tightly onto a hard surface with several rows of tiny tube feet. Mouth and anus facing upwards on conical protrusions. When submerged, short bushy feeding tentacles emerge from the mouth and tiny tube feet emerge all over the body.

Sometimes mistaken for a tiny colony of hard corals or a hard ascidian.

Changi, Jun 12

Changi, Jun 12

Riws of tube feet on the flat underside.

Mouth (or anus) on conical protrusion.

Changi, Jun 12

Short bushy feeding tentacles.

Tiny tube feet all over the body and on underside.

*Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display

Armoured sea cucumbers on Singapore shores

Photos of Armoured sea cucumbers for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map

  • Family Psolidae on SeaLife Base: Technical fact sheet.
  • Family Psolidae in North Australian Sea Cucumbers on Marine Species Identification Portal: Technical fact sheet.
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