Sue Daly / Candy striped flatworm (Prostheceraeus vittatus) laying eggs, Isle of Man, July.

Sue Daly / Candy striped flatworm (Prostheceraeus vittatus) Guillaumesse, Sark, British Channel Islands.

Sue Daly / Candy-striped Flatworm (Prostheceraeus vittatus) among anenomes. Pavlaison, Sark, British Channel Islands, July.

Sue Daly / Candy-striped Flatworm (Prostheceraeus vittatus). Channel Islands, UK, July.

Sue Daly / Candy-striped Flatworm (Prostheceraeus vittatus). Channel Islands, UK, June.

Wild Wonders of Europe / Pitkin / Flatworm (Prostheceraeus splendidus) on rock, 'Turtle Rock', Passage du Cavallo, Lavezzi Archipelago, Corsica, France, September 2008

Sue Daly / Candy striped Flatworm (Prostheceraeus vittatus), Jersey, Channel Islands, UK

Alan James / Candy striped flatworm (Prostheceraeus vittatus) UK

Hans Christoph Kappel / Candy striped flatworm {Prostheceraeus vittatus} Europe

Franco Banfi / Flat worm (Prostheceraeus sp.) on coral, rare albino species which inhabits poorly lit environments, Vis Island, Croatia, Adriatic Sea, Mediterranean.