http://slugsite.us/bow/nudiwk42.html
http://slugsite.us/bow/pan/sphoni.html
http://www.seaslugforum.net/showall/chrospho
http://slugophile.brinkster.net/page/branchpg/chromsph.html
http://www.slugophile.org/page/nudidb.asp?id=7
http://www.inbio.ac.cr/papers/babosasmarinas/ingles/listadeesp.htm
http://www.medslugs.de/E/Pac-E/Felimida_sphoni/Selection.htm
http://www.underwaterkwaj.com/nudi/cortez/sc012.htm
http://www.nudipixel.net/species/chromodoris_sphoni/
http://www.umiushi-zukan.com/eng/list_pic.php?ssw=g&kind_id=1768
http://darnis.inbio.ac.cr/ubisen/FMPro?-DB=UBIPUB.fp3&-lay=WebAll&-error=norec.html&-Format=detail.html&-Op=eq&id=682&-Find