http://privat.schlund.de/w/wseifarth/red0001.html
http://slugsite.us/bow/phil/quadra.html
http://slugsite.us/bow/nudiwk94.html
http://www.medslugs.de/E/Ind-NW/Chromodoris_quadricolor/Selection.htm
http://198.161.103.48/deepdiscoveries/ssh5.jpg
http://www.angelfire.com/mi/sharkcage69/nudi/chrom08.html
http://www.uwphotos.com/Pages/RSgallery/rsm07.htm
http://www.seaslugforum.net/showall/chroquad
http://www.unterwasserbilder.de/marin3/schne2/rot117.htm
http://www.subaqua.ch/rot035e.htm
http://servlet.percula.com/servlet/Taxonomy.ShowPic?picId=134&creatureId=53
http://www.scubaportugal.com/UWPhoto/LuisQuinta/Portfolio/RedSea2/5.html
http://www2.dynamite.com.au/davidh/nudibranchs/redsea/index.htm
http://www.photosub.de/KORALLEN/PS_KORALLEN_Schnecken_01.html
http://www.hps-uwfotos.de/pyjamaschnecke.htm
http://www.retenatura.it/nudibranchi/025.htm
http://www.wttfw.freesurf.fr/biology/biology_liste.php?langue=uk&action=classif#Opistobranchia
http://www.nembro.info/uk_chromodoris_quadricolor.html
http://www.scuba-equipment-usa.com/marine/NOV04/Four_Colour_Chromodoris(Chromodoris_quadricolor).html
http://www.nudipixel.net/species/chromodoris_quadricolor/
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=1262
http://opistobranquis.info/en/guia/nudibranchia/euctenidiacea/doridacea/chromodoris-quadricolor/