aries: pegasus - winged horse, companion of Bellerophon.
taurus: minotaur - Half man half bull, lived in the Labyrinth in Crete, would kill seven young men and women sent in every year
gemini: the gorgons - immortal women with snakes for hair and the power to turn men into stone with their eyes. One of the three sisters was Medusa
cancer: harpy - body of a bird of prey and face of a woman, tormented King Phineus of the Argonauts, were said to be the cause of bad weather and storms.
leo: chimera - fire breathing monster with a lion head, goat body and serpent tail.
virgo: hydra - serpent with nine heads, whenever one head was cut off two more grew back in its place
libra: griffin - head and wings of an eagle, body of a lion. They would find gold in the mountain and build nests of it, kill and eat anyone who tried to take away their gold.
scorpio: manticore - man eating creature with the body of a lion, head of a man and tail of a scorpion.
sagittarius: cerberus - the three headed pet dog of Hades who guarded the gates to the underworld
capricorn: satyr - half human half goat, follower of Dionysus, god of wine
aquarius: sphinx - head of a woman, body of a lion, wings of a griffin. stopped travellers on the road to thebes and asked them a riddle. If they answered wrong, the sphinx would kill them
pisces: siren - mermaid like creatures, their beautiful voices called men to their deaths