Elysia trilobata  Heller & Thompson, 1983

http://www.seaslugforum.net/showall/elystril
http://www.koretz.net/Eilat/Invertebrates/Molluscs/Opistobranchs/Etrilobata.htm
http://www.medslugs.de/E/Ind-NW/Elysia_trilobata/Selection.htm