http://www.slugophile.org/page/nudidb.asp?id=8
http://www.inbio.ac.cr/papers/babosasmarinas/ingles/listadeesp.htm
http://www.medslugs.de/E/Pac-E/Montereina_aurila/Selection.htm
http://www.nudipixel.net/species/diaulula_aurila/