Elysia cf. japonica  Eliot, 1913

http://www.seaslugforum.net/showall/elyscfjapo
http://www.Philippine-Sea-Slugs.com/Sacoglossa/Elysia_japonica_cf.htm
http://www.medslugs.de/E/Pac-W/Elysia_japonica_cf/Selection.htm