Elysia rufescens is known from the Marshalls from just a few specimens so far, all in very shallow water. The first was under a rock on a Kwajalein Atoll intertidal reef at low tide on 21 July 2009. It measured about 25mm in length. We have also seen this species in Hawaii and at Nauru Island.
A second specimen was a bit more green and less red, and was found on 28 March 2011 under a rock with eggs at the northeast lagoon tip of Kwajalein Island, right along a man-made riprap that guards against island erosion. Water depth at middle low tide was about a half meter.
A smaller individual.
Another specimen from October 2016.
Created 26 July 2009
Updated 19 March 2017
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