Sea creature who lived across the Strait of Messina from Scylla (9)

I believe the answer is:

charybdis

(Other definitions for charybdis that I've seen before include "Mythical whirlpool" , "Scylla's counterpart" , "Whirlpool, across from 14" , "Whirlpool opposite Scylla" , "monster" .)

I've seen this clue in the LA Times.

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