These and many others of lesser note, Proteus, Glaucus and the rest, make up the discordant influences that govern the watery element.
Many wonderful stories are told by classic writers concerning these old myths, and innumerable relics of antique art which embody the conceptions of the times are extant in our museums, by which we may judge to what a large extent such ideas influenced the common life and formed the beliefs of ancient peoples.
It is also worthy of observation to note in what manner the ancients sought to identify the various sea-deities and other mythical creatures with the element they lived in. Each was known by his form or the attributes by which he was accompanied. Modern heraldry repeats many of these old-world myths as new-coined fables, so that for their proper understanding and signification it will be necessary briefly to refer to ancient ideas respecting them. Lakes, rivers and fountains had each their impersonation peculiar to them, which will be found referred to in classic story.
Mediæval legend is equally rife with accounts of wonderful creatures of the sea. The change of one form of superstition for another alters but little the constitution of the mind to harbour fears, and the imagination will deceive even the wisest and best so long as Nature's laws are misunderstood.
Particular whirlpools, rocks and other dangerous places to navigation, are personated under the forms of monsters of various and awful shapes feared by the mariner, who dreads
"The loud yell of watery wolves to hear."
Scylla and Charybdis are two rocks which lie between Italy and Sicily. Ships which tried to avoid one were often wrecked on the other. The ancients feigned an interesting legend to account for their existence. It was Circe who changed Scylla into a frightful sea monster, and Jupiter who changed Charybdis into a whirlpool, the noise of which was likened to the loud barking of dogs; and the monster was therefore represented with savage dogs amidst her scaly folds, and loudly baying.
"Far on the right her dogs foul Scylla hides; Charybdis roaring on the left presides, And in her greedy whirlpool sucks the tides, Then spouts them from below; with fury driven The waves mount up, and wash the face of heaven. But Scylla from her den with open jaws The sinking vessel in her eddy draws Then dashes on the rocks. A human face And virgin bosom hides her tail's disgrace; Her parts obscene below the waves descend, With dogs enclosed, and in a dolphin end." _Æneid_, Book iii.