This appears to be a species of Ercolania, similar to and possibly the same as one figured on the Sea Slugs of Hawaii website as Ercolania sp. 8. The first one was found and photographed by Christina Sylvester under a rock in a Kwajalein reef quarry on 2 February 2015.
A couple of different specimens also from the Kwajalein reef quarry.
This looks like another. It was found off Kwajalein's lagoon side north point by Christina Sylvester.
Created 6 February 2015
Updated 16 July 2016
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