Marionia glama (Rüppell & Leuckart, 1831) [Tritonia]

http://www.koretz.net/Eilat/Invertebrates/Molluscs/Nudibranchs/Mglama.htm
http://www.medslugs.de/E/Ind-NW/Marionia_glama/Selection.htm
http://www.nudipixel.net/species/marionia_glama/