Tergipes sp.  Genus: Cuvier, 1805

http://www.nudibranch.com.au/pages/3765e.htm
http://www.seaslugsofhawaii.com/species/Tergipes-sp1-a.html
http://www.nudipixel.net/species/tergipes_sp/
http://www.medslugs.de/E/Ind-E/Tergipes_sp_03/Selection.htm
http://www.medslugs.de/E/Pac-W/Tergipes_sp_03/Selection.htm