http://www.vibrantsea.net/melibe9_anilao17.htm
http://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Melibe_digitata.htm
http://www.nembro.info/uk_melibe_digitata1.html
http://www.seaslugforum.net/showall/melidigi
http://www.medslugs.de/E/Pac-W/Melibe_digitata/Selection.htm
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=1259