| Argus |
100-eyed giant, also known as Panoptes ('the all-seeing') |
Made guard of Io, turned into a white cow by goddess Hera, he was charmed to sleep and slain by her rescuer Hermes. In one version his eyes after death were transplanted to the peacock's tail |
| Calydonian Boar |
Boar of huge size and strength |
Atremis angered with the king of Calydon, Oeneus, sent the boar to devastate the land; his son Meleager finally killed it in a hunt with various heroes |
| Centaurs |
Drunken and lecherous monsters inhabiting the mountain regions of Thessaly and Arcadia, with human torsoes and horses' legs |
Hero Theseus and others drove them from Thessaly after their attempt to abduct the bride of the king of Lapiths from her wedding feast |
| Cerberus |
Three-headed, dragon-tailed guard dog of the entrance to Hades, sometimes with fifty heads and a mane of snakes |
Never permitted anyone to leave Hades; however, musician Orpheus charmed the beast with his lyre and escaped |
| Cetus |
Terrible sea monster sent to ravage Ethiopia |
Sent by Poseidon in anger at the boastfulness of the king of Ethiopia's wife, Cassiopeia, and slain by hero Perseus to save Cassiopeia's daughter, Andromeda |
| Charybdis |
Monster whirlpool, sucking and belching forth water three times daily; dwells opposite Scylla, on the side of a strait identified as the Strait of Messina |
Odysseus managed to avoid Charybdis on his perilous voyage |
| Chimaera |
Fire-breathing creature that had a goat's body, a lion's head and a serpent's tail |
Slain by the hero Bellerophon at the treacherous request of Iobates, king of Lycia |
| Cyclops |
In Hesiod, storm gods, sons of Uranus and Gaea; in Homer, a cannibalistic race of giant beings; also sometimes Hephaestus' assistants; they have one big eye in the middle of their foreheads |
Homer's Cyclops Polyphemus, son of Poseidon, was tricked and blinded by hero Odysseus |
| Echidna |
Half woman, half serpent, the mate of Typhon and mother of various other monsters with him |
Slain in her sleep by the giant Argus |
| Erinyes or Furies |
Hideous avenging deities that punished mercilessly offences against human society, with snakes for hair, and blood dripping from their eyes |
In later legends they are merged with the ancient earth spirits, the Eumenides, as in Aesychlus' account of the pursuit of the matricide Orestes |
| Geryon |
Triple-headed monster that reigned over the coast of Iberia or Epirius |
Owned a herd of red oxen, which Hercules, after killing Geryon and his guards, took possession of for his tenth labour |
| Gorgons |
Monstrous dragon-like daughters of the sea god Phorcys and wife Ceto, covered in golden scales, with snakes for hair, huge wings, and hanging tongues; their glance could turn to stone |
Perseus, with the help of Hermes and Athena, killed the only mortal Gorgon, Medusa; from her blood sprang Pegasus |
| Graeae |
Old sisters, daughters of the sea god Phorcys and wife Ceto; grey-haired from birth, they share one eye and one tooth amongst themselves |
Perseus stole their eye and tooth, only returning them after they agreed to help him with his quest for Medusa's head |
| Harpies |
Daughters of Thaumas and Electra, they originally appear as beautiful deities, and later as winged monsters with hag-like female faces and the talons of birds of prey |
Tormenters of blind prophet Phineus, they were vanquished by heroes Zetes and Calais of the Argonauts, who needed Phineus' advice |
| Hydra |
Nine-headed monster from a marsh near Lerna, with poisonous breath and one immortal head |
Slain by Hercules as the second of his labours; he made his arrows poisonous by dipping them in its blood |
| Minotaur |
Man-eating monster that is half man and half bull; the offspring of Pasiphaë, wife of Minos, and a snow-white bull |
Killed by Theseus in the Cretan labyrinth, with the aid of Ariadne, daughter of Minos, and her ball of thread |
| Nemean Lion |
Supernatural lion whose skin cannot be penetrated by any weapon |
Ordered to bring back the skin of the lion for his first labour, Hercules succeeded by throttling it to death |
| Orthrus |
Two-headed dog and guard, along with herdsman Eurytion, of the cattle of Geryon; he is the brother of Cerberus |
Hercules killed him to take possession of the cattle of Geryon for his tenth labour |
| Pegasus |
Wild winged horse, son of sea god Poseidon and Gorgon Medusa, that becomes carrier of Zeus' lightning and thunderbolts |
Captured and tamed by hero Bellerophon, but later threw him off when he attempted to fly to top of Mount Olympus |
| Python |
Giant snake from the wooded slopes of Parnassus, near Delphi; son of Gaea, Mother Earth, and once a nurse to Typhon |
Guarded the oracle until killed by Apollo; the Pythian Games and the Septeria festival were said to be established to commemorate this victory |
| Satyr |
Deities of the woods and mountains, and companions of the god Dionysus, with pointed ears, horns, cloven hooves, tails, and sometimes goats' legs |
In Hesiod they are brothers of the nymphs; another tradition suggests they were men punished with transformation by Hera for negligence in watching Dionysus |
| Scylla |
Sea monster that has 12 feet and 6 heads with 3 rows of teeth; dwells in a cave on the opposite side of a strait to Charybdis |
Originally a beautiful maiden loved by a sea god, her rival, the sorcerer Circe transformed her; no ship would pass without some victim being devoured by her |
| Sileni |
Sometimes associated with Satyrs, sometimes regarded as a separate class of rural deity, distinguished by being part horse as opposed to goat |
Silenus, the drunken and prophetic tutor of Dionysus, is the main representative of this class; Midas' kindness to him was rewarded with the golden touch |
| Sirens |
Sea nymphs, with the bodies of birds and the heads of women; later represented with a woman's body terminating in the tail of a fish; daughters of sea god Phorcys |
Would lure passing mariners to their death on the rocks with their sweet singing; however, Orpheus matched their singing, allowing the Argonaut' ship to pass safely |
| Sphinx |
Monster with the head and breasts of a woman, the body of a lion, and the wings of a bird |
Presented all entering Thebes with a riddle, killing them if they could not solve it; Oedipus succeeded, bringing about her death |
| Stymphalian Birds |
Monstrous man-eating birds from the marshes of Stymphalus, with bronze beaks, wings and claws |
For his sixth labour Hercules scared them with an instrument, and killed them with arrows or a slingshot as they took flight |
| Triton |
Merman, with a human torso and the tail of a fish; son of sea god Poseidon and wife Amphitrite, he had the ability to raise and quieten the waves with his sea shell. In later legends a generic name referring to attendants of the water deities |
Saved the Argonauts when a storm drove their ship on to the Libyan coast |
| Typhon |
100-headed dragon, the offspring of Gaea |
Although conquered by Zeus was believed to spew forth the mountain flows of Etna |