Ceto minor Oceanid also named Ceto, or with various mythological beings referred to as "ketos" (plural "ketea"); this is a general term for "sea monster" in Ancient Greek. Hesiod's "Theogony" lists the children of Phorcys and Ceto as Echidna, The Gorgons (Euryale, Stheno, and the infamous Medusa), The Graeae (Deino, Enyo, Pemphredo, and sometimes Perso), and Ladon, also called the Drakon Hesperios ("Hesperian Dragon", or dragon of the Hesperides). These children tend to be consistent across sources, though Ladon is sometimes cited as a child of Echidna by Typhon and therefore Phorcys and Ceto's grandson. The Scholiast on Apollonius Rhodius cites
The Adventures of Hercules help, Hercules also teams up with Glaucia and rescues her sister Urania from hideous monsters called the Slime People. They are overwhelmed by their huge numbers and they flee into a cave where they meet Euryale. The cave is full of stone statues and Hercules and the sisters battle some more monsters, while Euryale walks away and reveals herself to be a snake-haired, half-woman, half-scorpion Gorgon. Using his shield as a mirror, Hercules avoids getting turned into stone and manages to decapitate Euryale, and retrieves the second thunderbolt. Hercules and the two sisters sail to an island and enter an