ACHELOUS is a river of Aetolia, formerly called Thestius.
This Thestius was the son of Mars and Pisidice, who upon
some domestic discontent travelled as far as Sicyon, where
after he had resided for some time, he returned to his
native home. But finding there his son Calydon and his
mother both upon the bed together, believing him to be an
adulterer, he slew his own child by a mistake. But when
he beheld the unfortunate and unexpected fact he had
committed, he threw himself into the river Axenos, which
from thence was afterwards called Thestius. And after
that, it was called Achelous upon this occasion.
Achelous, the son of Oceanus and the Nymph Nais,
having deflowered his daughter Cletoria by mistake, flung
himself for grief into the river Thestius, which then by
his own name was called Achelous.
In this river grows an herb, which they call zaclon, very
much resembling wool; this if you bruise and cast into
wine, it becomes water, and preserves the smell but not
the virtues of the wine.
In the same river also is found a certain stone of a
mixed black and lead color, called linurgus from the
effect; for if you throw it upon a linen cloth, by a certain
affectionate union it assumes the form of the linen, and
turns white;—as Antisthenes relates in the Third Book
of his Meleagris, though Diocles the Rhodian more accurately tells us the same thing in his Aetolics.
Near to this river lies the mountain Calydon, so called
from Calydon, the son of Mars and Astynome; for that
he, by an accident having seen Diana bathing herself, was
transformed into a rock; and the mountain which before
was named Gyrus was afterwards by the providence of the
Gods called Calydon.
Upon this mountain grows an herb called myops. This
if any one steep in water and wash his face with it, he
shall lose his sight, but upon his atoning Diana, he shall
recover it again;—as Dercyllus writes in his Third Book