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This worm represents a highly diverse species of marine flatworms. They, because of their brilliant colors, are a warning to predators that they are toxic, and at a minimum distasteful.


I have spotted these in coral and sandy areas in all oceans. This spotting was off the island of Chuuk (formerly known as Truk Lagoon), which is a part of the Federated States of Micronesia. It was found about 40' deep.

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Jim Nelson
Spotted by
Jim Nelson

Tol, Chuuk, Micronesia

Spotted on Nov 25, 2001
Submitted on Feb 16, 2015

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