http://slugsite.us/bow2007/nudwk962.htm
http://slugsite.us/bow/nudwk184.htm
http://slugsite.us/steve/steve_6.htm
http://www.medslugs.de/E/Pac-NE/Hermissenda_opalescens/Selection.htm
http://slugsite.us/bow/pacific/crassico.html
http://www.vibrantsea.net/crass12_channel2.html
http://www.oceanphotos.com/d437-2.htm
http://www.oceanphotos.com/d1043.htm
http://www.medslugs.de/E/Pac-E/Hermissenda_opalescens/Selection.htm
http://www.seaslugforum.net/showall/hermcras
http://www.metridium.com/monterey/nudibranchs/hermissenda.html
http://slugsite.us/bow2007/nudwk553.htm
http://www.underwaterkwaj.com/nudi/california/c011.htm
http://smg.photobucket.com/albums/v109/divinman/Nudibranch%20archive/?start=80
http://scottpenny.smugmug.com/gallery/3881249_R9eMK/5
http://www.nudipixel.net/species/hermissenda_crassicornis/