Spotting

I am glad that you found the species. Very beautiful UW spottings BTW :-)

It is a Pseudoceros Monostichos. Thank you Ms Texeira.

Thank you! Could not find it in Helmut Debelius 's book. Will try to add to mission for flatworms.

Is not a nudibranch but a type of flat worm. You can add it to the mission for flatworms:
http://www.projectnoah.org/missions/8533...

If you post the image in the web site Sea Slug forum they may come up with a more accurate ID:
http://www.seaslugforum.net/

Yeah, it's some type of nudibranch. Very cool!