http://www.street.ne.jp/divers/ono/seaslug1/room1-12.htm
http://www.seaslugforum.net/showall/chelsp1
http://www.seaslugforum.net/showall/chelsp2
http://www.seaslugforum.net/showall/chelsp3
http://www.sea-slug.com/species/umiusi086.htm
http://www.seaslugforum.net/showall/chelsp4
http://umiushi.zive.net/photo_species/photo_splist_eng.php?sopt=0&loc=0000
http://www.edge-of-reef.com/opistobranchi/opi/OPIChelidonuraspen.htm
http://www.ne.jp/asahi/kappa-kuri/miyamoto/OSEHOO/umiushi141.html
http://www.ne.jp/asahi/kappa-kuri/miyamoto/OSEHOO/umiushi145.html
http://www.seaslugforum.net/showall/chelsp6
http://www.seaslugforum.net/showall/chelsp7
http://www.medslugs.de/E/Pac-W/Chelidonura_sp_01/Selection.htm
http://www.medslugs.de/E/Ind-NW/Chelidonura_sp_03/Selection.htm
http://www.medslugs.de/E/Med/Chelidonura_sp_04/Selection.htm
http://www.underwaterkwaj.com/nudi/cephalaspideans/e436.htm
http://www.underwaterkwaj.com/nudi/cephalaspideans/e088.htm
http://www.underwaterkwaj.com/nudi/cephalaspideans/e528.htm
http://www.underwaterkwaj.com/nudi/cephalaspideans/e556.htm
http://www.nudibranch.com.au/pages/8864cc.htm
http://www.nudibranch.com.au/pages/b4832w.htm
http://www.medslugs.de/E/Pac-NW/Chelidonura_sp_01/Selection.htm
http://www.seaslugsofhawaii.com/species/Chelidonura-sp1-a.html
http://www.seaslugsofhawaii.com/species/Chelidonura-sp3-a.html
http://www.Philippine-Sea-Slugs.com/Cephalaspidea/Chelidonura_sp_01.htm
http://www.Philippine-Sea-Slugs.com/Cephalaspidea/Chelidonura_sp_02.htm
http://ianskipworth.com/suig/nudis2.html
http://www.nudipixel.net/species/chelidonura_sp/
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=14
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=1346
http://www.Philippine-Sea-Slugs.com/Cephalaspidea/Chelidonura_sp_03.htm
http://www.medslugs.de/E/Ind-E/Chelidonura_sp_01/Selection.htm
http://marliwakeling.jalbum.net/Nudibranchs/slides/Chelidonura sp.html
http://www.medslugs.de/E/Pac-W/Chelidonura_sp_06/Selection.htm
http://www.nuditahiti.com/liste-des-espèces/chelidonura-sp/