http://www.imicom.or.jp/~bolland/trapbrun.html
http://www.seaslugforum.net/showall/trapbrun
http://www.umiushi.info/photo_species/photo_splist_eng.php?sopt=0&loc=0000
http://www.medslugs.de/E/Pac-SW/Trapania_brunnea/Selection.htm
http://www.nudibranch.com.au/pages/7278d.htm
http://www.scuba-equipment-usa.com/marine/DEC05/Brown_Trapania(Trapania_brunnea).html
http://ianskipworth.com/suig/nudis.html
http://www.daveharasti.com/nelsonbay/seaslugs/pagetwo.htm
http://www.dragonmouse.com.au/diving/nudibase.php?action=nudidetail&id=252