João Pedro Silva

Thos are eggs capsules of a squid (Loligo sp.).

Thanks, Ashley. Not all nudibranchs have pretty colors but they all are amazing creatures with incredible adaptations. After adding some of my photos of nudibranchs and opisthobranchs I'll add some more cryptic animals.

I'm probably only duplicate some species if there are some noticeable variations and/or observations in very different places.

Thanks, António. This is just one of the most common and most easily seen species along our coast at any time of the year. I still have to upload some more species... in fact, I'm not even half way just in terms of species (I'm not going to upload all my observations in 15 years :) ).

This species is the type for the Peltodoris genus so the placement under the Discodoris genus has been render obsolete some years ago. Discussion on this can be read at the (late) Sea Slug Forum: http://www.seaslugforum.net/find/discatr...

This is Cratena peregrina, a common species in the Mediterranean and Eastern Atlantic easily recognized by the two orange patches on the head and the smooth rhinophores with orange tips.

You're welcome, António. We have roughly 150 species of nudibranchs, many of which can be found anywhere along the coast during the low tide (although to see the whole range you have to dive). I believe we would find even more species if there were more people actively trying to document them.

The two photos show two different species.

Platydoris sanguinea is a species of the Western Pacific. This is Platydoris argo.

Hypselodoris elegans is an outdated classification. The current valid name is Felimare picta. The World Regester of Marine Species has all the references for this: http://www.marinespecies.org/aphia.php?p...