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worms > Phylum Platyhelminthes > Class Turbellaria > Order Polycladida
Orsak's flatworm
Nymphozoon orsaki
Family Pseudocerotidae
updated Oct 2016

Where seen? This bold black-and-white flatworm is sometimes seen encountered on coral rubble near living reefs.

Features: 5-6cm long. Body background pinkish cream. Narrow black margin with inner orange margin. Along the middle of the body, one fine white stripe. Underside variable from light pinkish-cream to light or dark brown with a thin white line in the middle. It has a pair of erect pseudotentacles at the front made up of folded edges of the body.

Sometimes mistaken for the Brown striped flatworm (Pseudobiceros gratus) which is more brown and has a broad dark stripe in the middle of the body.

Lazarus Island, Nov 14
Photo shared by Loh Kok Sheng on flickr.


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