Ugly, winged women with snakes wrapped around their arms, legs, and in their hair. They wore long black mourning robes or short skirts and boots of huntresses.

Sea nymphs with the upper body of a beautiful woman and the bottom of a bird or mermaid. They are said to live on the island of Anthemusa.

This monster lives in a cave along the sea. She has 12 legs, 6 heads with many sharp teeth, and a fishtail. She and another of the monsters in this list make the strait of Messina very dangerous.

This monster lives opposite another monster on this list. She has a big gaping mouth, flippers for arms and legs, and creates a massive whirlpool every time she sucks in water.

a fire-breathing monster with a lion's head, a goat's body, and a serpent's tail.

This is a giant, scaly water-serpent often depicted with 9 heads. Every time one of her heads is cut off, two more grow in its place. Only one head is immortal and must be removed to end her reign of terror.

This creature sported a very muscular man's body, but a bull's head and tail and lives in a labyrinth. Every seventh year, 14 Athenian young people are sacrificed to the creature.

These creatures are gigantic, one-eyed creatures. While the first three were intelligent blacksmiths famed for the weapons they made for the gods, the latter were dim-witted and violent shepherds who lived on the island of Sicily.

This monster is known as the mother of all monsters. She has the body of a woman, but a snake's body in place of legs and can cause madness with her venom.

This monster has snakes for hair, wings, and tusks. Looking directly at her will turn a person into stone.

This creature has the body of a lion, the tail of a serpent, the breasts and head of a woman, and the wings of an eagle. She eats those who cannot answer her riddle.

This creature looks like a monstrously huge lion. Its skin cannot be punctured by weapons and it's claws can cut through any armor.

These creatures have the body of a horse and the torso, head, and arms of a man. Most are lustful and wild, while Chiron, the most famous of these creatures, is known for his noble behavior and ability to teach young warriors.

These creatures have the upper body of a human, but the the legs and tails of a goat. They have goat-horns on their head. They are lustful attendants of Dionysus, and are known to especially pursue nymphs.

These creatures abduct evil people and torture them on their way to Hades.

These creatures were once the hand-maidens of Persephone. After her abduction by Zeus, Demeter changed them into their current form for one of two reasons, depending on the myth: either as a punishment for allowing Persephone to be abducted OR so that they could more easily hunt for her.

This monster was originally a sea nymph, but was changed into her "current" form by Circe, a sorceress. She attacks ships who sail between her and another monster on this list, taking one sailor for each head. She is the "lesser of two evils" -- ships often chose to pass her instead of her counterpart.

This monster creates a giant whirlpool that sucks ships to their doom. She is the "greater of two evils" since she kills ALL sailors, while her counterpart only kills 6 at a time.

This monster is the child of Typhoeus and Echidna, and terrorizes the lands of Lycia with its fire breath. He was killed by Bellerophon with the aid of Pegasus, a horse-like animal that could fly.

This child of Echidna and Typhon was spawned and raised specifically to kill Hercules. It has multiple heads that spew poisonous gas and venom at its victims. It can only be killed by removing its one immortal head.

This monster was created as a punishment to the King. of Crete, who failed to give the proper thanks to Poseidon. the King's wife, Pasiphae, was made to fall in love with a bull. the monster that was created from this union was made to live in the labyrinth where he ate the victims that were sacrificed to him.

The most famous of these creatures, Polyphemus, was actually a child of Poseidon. Odysseus, who had been trapped with his men in the monster's lair, blinded him, and then escaped by hiding under the bellies of the sheep when Polyphemus let the sheep out the next day.

This monster is responsible for the existence of many other monsters, including Cerberus, the Hydra, the Gorgons, and the Chimera.

This monster terrorized the people of Thebes. She was defeated finally when Oedipus was able to answer her riddle, which led her to leap to her own death.

Defeating this creature was the first of Heracles's 12 labors. Heracles was unable to kill it with arrows, so he killed it by strangling it with his bare hands. Athena helped him remove the hide of the creature with it's own claws so that Heracles could wear it as a trophy.

This famous centaur was one of the only civilized member of his kind. He tutored a number of heroes, including Achilles, Aseculapius, and Heracles. Although immortal, he was accidentally shot by Heracles with an arrow dipped in the blood of the monster Hydra. He suffered great pains and volunteered to die in order to free Prometheus from his punishment.

These creatures were known to play the pan flute and to make vegetation grow. They were companions to Dionysus, Hermes, Pan, and Gaia, among others, and were usually shown drinking, dancing, and playing their flutes.