http://scottpenny.smugmug.com/Underwater/Field-ID/Southern-california-Nudibranch/3881249_R9eMK/2/225050828_LeJd4/Original
http://www.medslugs.de/E/Atl-SE/Cadlina_sp_01/Selection.htm
http://www.nudipixel.net/species/cadlina_sp/