Scylla and Charybdis, two rocks opposite each other at a narrow pass of the strait between Italy and Sicily, in the cave of one of which dwelt the former, a fierce monster that barked like a dog, and under the cliff of the other of which dwelt the latter, a monster that sucked up everything that came near it, so that any ship passing between in avoiding the one become a prey to the other.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Scutari * Scythians