http://rfbolland.com/okislugs/pheslugu.html
http://slugsite.us/bow/nudiwk65.html
http://www.seaslugforum.net/eggspir.htm
http://slugsite.us/bow/hans10.html
http://online.divers.ne.jp/ono/seaslug1/room1-7.html
http://www.seaslugforum.net/showall/pheslugu
http://www.umiushi.info/photo_species/photo_splist_eng.php?sopt=0&loc=0000
http://www.medslugs.de/E/Pac-NW/Phestilla_lugubris/Selection.htm
http://www.vibrantsea.net/phestilla36_anilao26.htm
http://www.medslugs.de/E/Ind-SW/Phestilla_lugubris/Selection.htm
http://seaslugs.free.fr/nudibranche/a_phest_lugubris.htm
http://www.inbio.ac.cr/papers/babosasmarinas/ingles/listadeesp.htm
http://www.medslugs.de/E/Pac-E/Phestilla_lugubris/Selection.htm
http://www.underwaterkwaj.com/nudi/eolids/e008.htm
http://www.underwaterkwaj.com/nudi/hawaii/h183.htm
http://www.underwaterkwaj.com/nudi/solomons/s059.htm
http://www.seaslugsofhawaii.com/species/Phestilla-lugubris-a.html
http://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Phestilla_lugubris.htm
http://www.medslugs.de/E/Ind-E/Phestilla_lugubris/Selection.htm
http://www.nudipixel.net/species/phestilla_lugubris/
http://tahitinudi.jimdo.com/liste-des-espèces/phestilla-lugubris/
http://www.medslugs.de/E/Pac-W/Tenellia_lugubris.htm
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=497
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=497