Limacina (Embolus) inflata (d'Orbigny, 1834) [Allanta]

http://www.gastropods.com/7/Shell_14167.shtml
http://www.seaslugsofhawaii.com/species/Limacina-inflata-a.html
http://www.nmr-pics.nl/Limacinidae/album/index.html
http://species-identification.org/species.php?species_group=pelagic_molluscs&menuentry=soorten&id=289