‖Scyl‐læ″a (?), n. [NL. See Scylla.] (Zoöl.) 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.