the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > superorder Branchifera > order Prosobranchiata > section Holostomata > family Ianthinidae > member of genus Ianthina (4)
The floating mollusc Ianthina.
(a) = sense B. 5 (now historical); †(b) a violet sea snail of the genus Janthina (obsolete rare).
The floating mollusc Ianthina.