Thessalhydra

Thessalhydras were hideous and terrifying creatures. They had a large, reptilian body with a long tail, 18 feet (5.5 meters) in length, which ended in a pair of large, sharp pincers. It had no head, instead eight hydra-like heads, each about 6 feet (1.8 meters) in length, surrounded a gaping mouth filled with teeth and acidic saliva.