Hey maybe its from the family Dorididae, check out naturdata nudibranch families it's a portuguese site
http://naturdata.com/taxa/Animalia/Mollusca/Gastropoda/Nudibranchia
Hello! we have made a new mission for nudibranchs! I would like to invite you to add your nudi spotting in this mission. And many thanks for your contribution!
Looks a lot like Neodoris chrysoderma, but what confuses me is that this nudibranch is placed in the web sites as in Australian waters. If your spotting was in Portugal, perhaps is a related species.
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