Janthinidae
plural noun
Jan·thin·i·dae
janˈthinəˌdē
: a family of marine snails (suborder Taenioglossa) comprising the violet snails and floating at the surface by means of a raft of air bubbles enclosed in hardened mucus secreted by the foot see janthina
Word History
Etymology
New Latin, from Janthina, type genus + -idae