http://www.seaslugforum.net/showall/hypsviol
http://slugsite.us/bow2007/nudwk667.htm
http://www.underwaterkwaj.com/nudi/hawaii/h145.htm
http://www.seaslugsofhawaii.com/species/Hypselodoris-violabranchia-a.html
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=1213
http://www.medslugs.de/E/Pac/Hypselodoris_violabranchia/Selection.htm