http://www.seaslugforum.net/showall/hypsobsc
http://www.nudibranch.com.au/pages/6317.htm
http://www.webone.com.au/~diving/nudibranchs/pagefour.htm
http://www.scuba-equipment-usa.com/marine/DEC03/Obscure_Hypselodoris(Hypselodoris_obscura).html
http://www.medslugs.de/E/Pac-SW/Hypselodoris_obscura/Selection.htm
http://www.nudipixel.net/species/hypselodoris_obscura/
http://www.daveharasti.com/nelsonbay/seaslugs/index.htm
http://www.dragonmouse.com.au/diving/nudibase.php?action=nudidetail&id=22