worms > Phylum Platyhelminthes > Class Turbellaria > Order Polycladida
Blue-spotted flatworm
cf Pseudoceros indicus*
updated Apr 09

Where seen? This little flatworm is often seen on many of our Northern shores. On rocky shores, on boulders and under stones.

Features: 2-3cm long. Body plain white with closely-set dark blue spots along the margin. The body margins are slightly ruffled when the worm is in water. It has a pair of erect pseudotentacles at the front made up of folded edges of the body.

The worms have been observed enveloping spherical objects. Could they be eating the Yellow clustered bead ascidians (Eudistoma sp.) that grow on the rocks?

According to Leslie Harris, this worm looks similar to Pseudoceros indicus.

Pulau Sekudu, Jul 05
Front end of the worm.

Eating a spherical encrusting animal?
Changi, Jun 08

Blue-spotted flatworms on Singapore shores


Changi, Jun 08


Pulau Hantu, Mar 06


Changi, Jul 05

more photos of blue-spotted flatworms on Singapore shores

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

Acknowledgement
With grateful thanks to Leslie H. Harris of the Natural History Museum of Los Angeles County for comments on this worm and its identification.

References
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