http://www.seaslugforum.net/showall/chelpunc
http://www.medslugs.de/E/Ind/Chelidonura_punctata/Selection.htm
http://www.medslugs.de/E/Ind-E/Chelidonura_punctata/Selection.htm
http://www.nembro.info/uk_chelidonura_punctata.html
http://www.medslugs.de/E/Ind-SW/Chelidonura_punctata/Selection.htm
http://seaslugs.free.fr/nudibranche/a_cheli_punctata.htm
http://slugsite.us/bow2007/nudwk699.htm
http://www.nudipixel.net/species/chelidonura_punctata/
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=1171