http://www.seaslugforum.net/factsheet.cfm?base=notoward
http://www.medslugs.de/E/Pac-W/Notobryon_wardi.htm
http://rfbolland.com/okislugs/notoward.html
http://rfbolland.com/okislugs/notowar2.html
http://www.ne.jp/asahi/kappa-kuri/miyamoto/OSEHOO/umiushi139.html
http://www.Philippine-Sea-Slugs.com/DENDRONOTINA/Notobryon_wardi.htm
http://slugsite.us/bow/nudwk413.htm
http://www.medslugs.de/E/Pac-E/Notobryon_wardi.htm