Scyl*lae"a (?), n. [NL. See Scylla.] Zool.
A genus of oceanic nudibranchiate mollusks having the small branched gills situated on the upper side of four fleshy lateral lobes, and on the median caudal crest.
In color and form these mollusks closely imitate the fronds of sargassum and other floating seaweeds among which they live.
© Webster 1913.