Ianthinas pl. : of Ianthina

Example:


Taxonomy
Ianthina, genus, violet, Webster's Revised Unabridged Dictionary, violet-blue, Gr, flower, Zo, gastropod, species, mid ocean, floats, raft, constructs, air bubbles, mucus, Tyrian purple, ancients.

Defination from the web:
... ( Zo["o]l.) Any gastropod of the genus Ianthina, of which various species are found living in mid ocean; -- called also purple ... Note: It floats at the surface by means of a raft, which it constructs by forming and uniting together air bubbles of hardened mucus. ...