http://rfbolland.com/okislugs/cratsimb.html
http://online.divers.ne.jp/ono/seaslug6/room6-6.html
http://www.umiushi.info/photo_species/photo_splist_eng.php?sopt=0&loc=0000
http://www.medslugs.de/E/Pac-NW/Cratena_simba/Selection.htm
http://www.medslugs.de/E/Pac-W/Cratena_simba/Selection.htm
http://www.nudibranch.com.au/pages/9977c.htm
http://www.nudipixel.net/species/cratena_simba/
http://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Cratena_simba.htm
http://marliwakeling.jalbum.net/Nudibranchs/slides/Cratena simba.html
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=462
http://www.dragonmouse.com.au/diving/nudibase.php?action=nudidetail&id=218
http://www.medslugs.de/E/Ind-E/Cratena_simba/Selection.htm