http://underwaterphotos.com/GNUD9.htm
http://divegallery.com/nudibran.htm
http://www.medslugs.de/E/Pac-W/Phyllidia_coelestis/Selection.htm
http://www.seaslugforum.net/showall/phylcoel
http://rfbolland.com/okislugs/phylcoel.html
http://www.medslugs.de/E/Ind-E/Phyllidia_coelestis/Selection.htm
http://www.cosmos.ne.jp/~breach/slug%20full%203/nudi%20full86.html
http://servlet.percula.com/servlet/Taxonomy.ShowPic?picId=149&creatureId=68
http://www.bunaken.pwp.blueyonder.co.uk/sss-phyl-coel-01.htm
http://www.bunaken.pwp.blueyonder.co.uk/sss-phyl-coel-02.htm
http://www.bunaken.pwp.blueyonder.co.uk/sss-phyl-coel-03.htm
http://www.bunaken.pwp.blueyonder.co.uk/sss-phyl-coel-04.htm
http://www2.gateway.ne.jp/~coon/slug-56.htm
http://www.umiushi.info/photo_species/photo_splist_eng.php?sopt=0&loc=0000
http://www.edge-of-reef.com/opistobranchi/doridini/OPIPhyllidiacoelestisen.htm
http://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Phyllidia_coelestis.htm
http://www.medslugs.de/E/Pac-NW/Phyllidia_coelestis/Selection.htm
http://seaslugs.free.fr/nudibranche/a_pdia_coelestris.htm
http://www.vibrantsea.net/phyllidia2_anilao33.htm
http://www.nudibranch.com.au/pages/1637.htm
http://www.underwaterkwaj.com/nudi/solomons/s067.htm
http://www.underwaterkwaj.com/nudi/pohnpei/p461.htm
http://www.scuba-equipment-usa.com/marine/FEB06/Celestial_Phyllidia(Phyllidia_coelestis).html
http://www.nudibranch.org/Philippine Sea Slugs/html/nudibranchs/phyllidia-coelestis-01.html
http://www.nudipixel.net/species/phyllidia_coelestis/
http://www.nudibranch.org/Sulawesi Sea Slugs/html/sss-sea-slugs.html
http://marliwakeling.jalbum.net/Nudibranchs/slides/Phyllidia coelistis.html
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=372
http://www.dragonmouse.com.au/diving/nudibase.php?action=nudidetail&id=169
http://www.medslugs.de/E/Pac/Phyllidia_coelestis/Selection.htm
http://www.medslugs.de/E/Ind-SW/Phyllidia_coelestis/Selection.htm