http://www.medslugs.de/E/Ind-NW/Gymnodoris_citrina/Selection.htm
http://www.seaslugforum.net/showall/gymncitr
http://www.ne.jp/asahi/kappa-kuri/miyamoto/OSEHOO/umiushi124.html
http://www.arl.nus.edu.sg/mandar/yp/EPIC/nudi/nudipages/citrina.html
http://www.medslugs.de/E/Pac-W/Gymnodoris_citrina/Selection.htm
http://www.umiushi.info/photo_species/photo_splist_eng.php?sopt=0&loc=0000
http://www.sea-slug.com/species/umiusi286.htm
http://rfbolland.com/okislugs/gymncitr.html
http://rfbolland.com/okislugs/gymncit2.html
http://www.h.do-up.com/home/takayan/takapage402.htm
https://www.Philippine-Sea-Slugs.com/Nudibranchia/Doridina/Gymnodoris_citrina.htm
http://www.medslugs.de/E/Pac-NW/Gymnodoris_citrina/Selection.htm
http://seaslugs.free.fr/nudibranche/a_gymnodoris_citrina.htm
http://www.seaslugsofhawaii.com/species/Gymnodoris-citrina-a.html
http://www.nudipixel.net/species/gymnodoris_citrina/
http://www.medslugs.de/E/Ind-E/Gymnodoris_citrina/Selection.htm
http://tahitinudi.jimdo.com/liste-des-espèces/gymnodoris-citrina/
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=198
http://www.vibrantsea.net/gymnodoris2075_anilao2013.htm
http://www.medslugs.de/E/Ind-SW/Gymnodoris_citrina/Selection.htm