http://www.ne.jp/asahi/kappa-kuri/miyamoto/OSEHOO/umiushi137.html
http://www.sea-slug.com/species/umiusi162.htm
http://www.h.do-up.com/home/takayan/takapage411.htm
http://www.medslugs.de/E/Ind-NW/Armina_magna/Selection.htm
http://www.nudipixel.net/species/armina_magna/
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3073124/figure/fig01/
http://www.daveharasti.com/nelsonbay/seaslugs/pagefour.htm
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=608
http://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Armina_magna.htm
http://www.medslugs.de/E/Pac-W/Armina_magna/Selection.htm
http://www.dragonmouse.com.au/diving/nudibase.php?action=nudidetail&id=65
http://www.medslugs.de/E/Pac-NW/Armina_magna/Selection.htm