http://www.seaslugforum.net/showall/paradubi
http://www.bluering.org.au/Opisthobranchs-7213.htm
http://www.nudipixel.net/species/paradoris_dubia/
http://www.daveharasti.com/nelsonbay/seaslugs/pagefour.htm
http://www.medslugs.de/E/Pac-SW/Paradoris_dubia/Selection.htm