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worms > Phylum Platyhelminthes > Class Turbellaria > Order Polycladida
Starry flatworm
Pseudobiceros stellae*
Family Pseudocerotidae
updated Oct 2016

Where seen? This moderately large flatworm speckled with spots is only sometimes seen, usually in numbers, and then not again for a while. Near living reefs on some of our Southern shores.

Features: 4-8cm long. Usually with deep ruffles. Body pale brown to black speckled with white spots all over. A raised centre, with a narrow line of white spots on a dark stripe. Black wide margins, dense white spots. The underside is pale beige or grey with a broad black margin. It has a pair of erect white-tipped pseudotentacles at the front made up of folded edges of the body.

Kusu Island, Mar 06

Pale underside.

White-tipped pseudotentacles.

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

Starry flatworms on Singapore shores

Photos of Starry flatworms for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map

Kusu Island, Sep 10
Photo shared by Toh Chay Hoon on her blog.

Seringat Kias, Jul 11
Photo shared by Loh Kok Sheng on his blog.

Seringat Kias, Aug 12
Photo shared by Loh Kok Sheng on flickr.

Cyrene Reef, Aug 11
Photo shared by Loh Kok Sheng on flickr

Cyrene Reef, Aug 12
Photo shared by Loh Kok Sheng on his blog.

Pulau Semakau, Dec 08
Photo shared by Loh Kok Sheng on his blog.

White underside with black margin.

Pulau Hantu, Nov 09
Photo shared by Loh Kok Sheng on his blog


  • Pseudoceros bifurcus on Encyclopedia of Life, LifeDesks, Marine Flatworms - Polycladida: Technical fact sheet.
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