http://slugsite.us/bow/nudiwk81.html
http://www.medslugs.de/E/Ind/Roboastra_gracilis/Selection.htm
http://www.rfbolland.com/okislugs/robograc.html
http://www.vibrantsea.net/gracilis22_floridas1.html
http://www.subaqua.ch/nu016e.htm
http://www.medslugs.de/E/Ind-E/Roboastra_gracilis/Selection.htm
http://www.seaslugforum.net/showall/robograc
http://www.unterwasserbilder.de/marin3/schne3/mal1674.htm
http://www.cosmos.ne.jp/~breach/slug%20full%202/nudi%20full56.html
http://www.medslugs.de/E/Pac-W/Roboastra_gracilis/Selection.htm
http://www.umiushi.info/photo_species/photo_splist_eng.php?sopt=0&loc=0000
http://www.dancing-fish.com/uwphoto/solomons00/image_h.php?key=001112_04
http://www.medslugs.de/E/Pac/Roboastra_gracilis/Selection.htm
http://www.edge-of-reef.com/opistobranchi/doridini/OPIRoboastragracilisen.htm
http://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Roboastra_gracilis.htm
http://www.medslugs.de/E/Pac-NW/Roboastra_gracilis/Selection.htm
http://seaslugs.free.fr/nudibranche/a_robo_gracilis.htm
http://www.underwaterkwaj.com/nudi/phanerobranchs/e156.htm
http://www.underwaterkwaj.com/nudi/solomons/s047.htm
http://www.seaslugsofhawaii.com/species/Roboastra-gracilis-a.html
http://www.nudibranch.org/Philippine Sea Slugs/html/nudibranchs/roboastra-gracilis-01.html
http://www.nudibranch.org/Sulawesi Sea Slugs/html/sss-sea-slugs.html
http://tahitinudi.jimdo.com/liste-des-espèces/roboastra-gracilis/
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=195
http://www.dragonmouse.com.au/diving/nudibase.php?action=nudidetail&id=51
http://www.medslugs.de/E/Ind-SW/Roboastra_gracilis/Selection.htm
http://www.medslugs.de/E/Pac-SW/Roboastra_gracilis/Selection.htm