http://slugsite.us/bow/nudiwk46.html
http://rfbolland.com/okislugs/phylsphi.html
http://www.seaslugforum.net/showall/phylsphi
http://www.cosmos.ne.jp/~breach/slug%20full%202/nudi%20full32.html
http://www.medslugs.de/E/Pac-W/Phyllidiopsis_sphingis/Selection.htm
http://www.vibrantsea.net/straita4_anilao9.html
http://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Phyllidiopsis_sphingis.htm
http://www.underwaterkwaj.com/nudi/hawaii/h166.htm
http://www.seaslugsofhawaii.com/species/Phyllidiopsis-sphingis-a.html
http://www.nudipixel.net/species/phyllidiopsis_sphingis/
http://www.nudibranch.org/Sulawesi Sea Slugs/html/sss-sea-slugs.html
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=390
http://www.dragonmouse.com.au/diving/nudibase.php?action=nudidetail&id=202
http://www.medslugs.de/E/Pac/Phyllidiopsis_sphingis/Selection.htm