http://slugsite.us/bow/nudwk200.htm
http://www3.bc.sympatico.ca/kerryw/creature/gold.htm
http://slugsite.us/bow/pacific/aurantia.html
http://www.vibrantsea.net/golddirona8_hardy9.html
this website exists no more:
http://www.biology.ucsc.edu/classes/bio161l/NUDI/dauranti.html
http://www.seaslugforum.net/showall/diroaura
http://www.dancing-fish.com/uwphoto/porthardy/image_h.php?key=011002_17
http://www.medslugs.de/E/Pac-NE/Dirona_pellucida/Selection.htm
http://www.seaotter.com/marine/research/dirona/aurantia/html/aurantia.jpg.html
http://www.nudipixel.net/species/dirona_pellucida/
http://marliwakeling.jalbum.net/Nudibranchs/slides/Dirona pellucida juvenile.html
http://marliwakeling.jalbum.net/Nudibranchs/slides/Dirona pellucida.html
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=622