Scylla :: Scylla (n.) A dangerous rock on the Italian coast opposite the whirpool Charybdis on the coast of Sicily, -- both personified in classical literature as ravenous monsters. The passage between them was formerly considered perilous; hence, the saying Between Scylla and Charybdis, signifying a great peril on either hand..
Scyllaea :: Scyllaea (n.) 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..
Scyllarian :: Scyllarian (n.) One of a family (Scyllaridae) of macruran Crustacea, remarkable for the depressed form of the body, and the broad, flat antennae. Also used adjectively..