https://www.inaturalist.org/observations?place_id=any&subview=map&taxon_id=1471716
http://www.seaslugforum.net/showall/gonijoub
http://online.divers.ne.jp/ono/seaslug5/room5-9.html
http://www.sea-slug.com/species/umiusi100.htm
http://www.h.do-up.com/home/takayan/takapage436.htm
http://www.umiushi.info/photo_species/photo_splist_eng.php?sopt=0&loc=0000
http://www.medslugs.de/E/Pac-NW/Pelagella_joubini/Selection.htm
http://www.medslugs.de/E/Pac-W/Pelagella_joubini/Selection.htm
http://www.nudibranch.com.au/pages/5509e.htm
http://www.seaslugsofhawaii.com/species/Goniodoris-joubini-a.html
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=146
http://slugsite.us/bow2007/nudwk934.htm
http://www.medslugs.de/E/Ind-NW/Pelagella_joubini/Selection.htm
http://www.medslugs.de/E/Ind-NW/Pelagella_joubini/Selection.htm