http://slugsite.us/bow/nudiwkps/nudiwk7.html
http://www.angelfire.com/mi/sharkcage69/nudi/chrom01.html
http://www.seaslugforum.net/showall/chroannu
http://www.medslugs.de/E/Ind-E/Goniobranchus_annulatus/Selection.htm
http://www.medslugs.de/E/Ind-NW/Goniobranchus_annulatus/Selection.htm
http://www.unterwasserbilder.de/marin3/schne2/vae103.htm
http://www.unterwasserbilder.de/marin3/schne2/rot062.htm
http://www.angelfire.com/mi/sharkcage69/nudi/chrom02.html
http://www.nembro.info/uk_chromodoris_annulata.html
http://seaslugs.free.fr/nudibranche/a_chromodoris_annulata.htm
http://www.nudipixel.net/species/chromodoris_annulata/
http://www.medslugs.de/E/Pac-W/Goniobranchus_annulatus/Selection.htm
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=1170
http://www.dragonmouse.com.au/diving/nudibase.php?action=nudidetail&id=78
http://www.medslugs.de/E/Med/Goniobranchus_annulatus/Selection.htm
http://www.medslugs.de/E/Ind-SW/Goniobranchus_annulatus/Selection.htm