James Padfield Having trawled nudipixel.com, I think the first one (~25mm) is Chromodoris britoi, and the second (~45mm) is either Hypselodoris picta or Hypselodoris cantabrica - can anyone confirm these? Both were taken off of the Azores last week, in about 15m of water.
João Pedro Silva The second is Felimare picta azorica, an endemic subspecies. The first ID is correct but the current classification is 'Felimida' britoi.
More on the revision of the Chromodorididae (which moved the Atlantic Hypselodoris and Chromodoris to the Felimida clade) here:
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0033479
Nuno Filipe SilvestrePeltodoris atromaculata
Foto tirada dia 02 de Abril de 2013 a uma profundidade de +- 14 metros
João Pedro Silva Nuno, that's Peltodoris atromaculata, a common species in our area. When posting here, as this is a group more oriented towards studying sea slugs and less for sharing pretty pictures, keep in mind it's important to say where it was taken including depth and time of the year as this information may prove useful.
João Pedro Silva If you're interested, go through my blog to meet some other sea slugs in our area and also identify further observations:
http://hypselodoris.blogspot.pt/
João Pedro Silva I went through some of your photos of nudibranchs and spotted a couple of misidentifications (one Felimida purpurea identified as Felimida krohni and a Felimare cantabrica identified as Felimare picta) but I'm unable to comment there.
João Pedro Silva On a sequence of photos of a couple of Hypselodoris cantabrica shot today in Sesimbra, Portugal, about 8m deep, I found a small worm crawling, maybe 1mm long. Any idea what it is?
Carlos Fernández-Cid Ramos From Galicia Spain. Vigo
Josep LLuis Peralta RebullFlabellina babai
Carlos Fernández-Cid Ramos Thank You Nudimaster. I know
João Pedro Silva Interesting how not so long ago this was thought to be endemic to the Mediterranean. Right after Hypselodoris villafranca, it's the most common and easily seen nudibranch here in Portugal.
Erling Svensen THIS was a beautiful one. Congratulations...! Can you export one to Norway? (alive)
João Pedro Silva Don't know if it would survive the trip (they are fairly large and active so I suppose their metabolism is rather fast). I'm often asked if this species is expanding its distribution. I really don't know but I'm more inclined to say that there are more "nudi aware" divers with cameras and also more diving spots.
Carlos Fernández-Cid Ramos Thanks Joao and Erling. It´s my first Babai in Galicia. It´s rare here. The H.Villafranca and Cantabrica are the most common
João Pedro Silva The "Top 5" in frequency here in Portugal are Hypselodoris villafranca, Flabellina babai, Hypselodoris cantabrica, Hypselodoris tricolor and Chromodoris krohni.