Volvatella sp.  Genus: Pease, 1860

http://umiushi.zive.net/photo_species/photo_splist_eng.php?sopt=0&loc=0000
http://online.divers.ne.jp/ono/seaslug6/room6-1.html
http://www.medslugs.de/E/Pac-NW/Volvatella_sp_01.htm
http://rfbolland.com/okislugs/volv_sp1.html
http://www.seaslugforum.net/showall/volvsp1
http://rfbolland.com/okislugs/volv_sp2.html
http://www.nudibranch.com.au/pages/3642e.htm
http://www.underwaterkwaj.com/nudi/sacoglossans/e577.htm
http://www.underwaterkwaj.com/nudi/sacoglossans/e578.htm
http://www.underwaterkwaj.com/nudi/sacoglossans/e207.htm
http://www.underwaterkwaj.com/nudi/sacoglossans/e579.htm
http://sacoglossa.lifedesks.org/pages/34230
http://sacoglossa.lifedesks.org/pages/34232
http://sacoglossa.lifedesks.org/pages/34233
http://www.nudipixel.net/species/volvatella_sp/
http://www.nuditahiti.com/liste-des-espèces/volvatella-sp-1/