http://www.gastropods.com/4/Shell_1744.shtml
http://seaslugsofhawaii.com/species/Diacavolinia-longirostris-a.html
http://shell.kwansei.ac.jp/~shell/pic_book/data05/m307.html
http://www.nmr-pics.nl/Cavoliniidae/album/index.html
http://species-identification.org/species.php?species_group=pelagic_molluscs&menuentry=soorten&id=224
http://opistobranquis.info/en/guia/thecosomata/diacavolinia-longirostris/