Elysia mercieri (Pruvot-Fol, 1930)
6mm

We have personally seen at least two specimens of this species, both under dead coral at a depth of about 5m on lagoon reefs at Enewetak Atoll. Christina Sylvester has found small specimens (immediately below) up to about 3mm length to be sporadically common in Kwajalein reef quarries.

The photo below by Stan Jazwinski appears to show the same species.

Both Enewetak specimens from the early 1980s measured 6mm in length. Unfortunately, our old film image of this species from there is not very good.

Created 10 December 2007
Updated 16 January 2023

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