P. Ovidius Naso, Metamorphoses Book 4, 604
Gore from Medusa's head creating snakes in Libyan desert
View the Perseus Text

Perseus. Atlas. Andromeda.

The fortune of their grandson, Bacchus, gave
great comfort to them--as a god adored
in conquered India; by Achaia praised
in stately temples. -- But Acrisius
the son of Abas, of the Cadmean race,
remained to banish Bacchus from the walls
of Argos, and to lift up hostile arms
against that deity, who he denied
was born to Jove. He would not even grant
that Perseus from the loins of Jupiter
was got of Danae in the showering gold.

So mighty is the hidden power of truth,
Acrisius soon lamented that affront
to Bacchus, and that ever he refused
to own his grandson; for the one achieved
high heaven, and the other, (as he bore
the viperous monster-head) on sounding wings
hovered a conqueror in the fluent air,
over sands, Libyan, where the Gorgon-head
dropped clots of gore, that, quickening on the ground,
became unnumbered serpents; fitting cause
to curse with vipers that infested land.