This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Erymanthian Boar (Greek)
For the fourth labor, Eurystheus ordered Hercules to bring him the Erymanthian boar alive. Now, a boar is a huge, wild pig with a bad temper, and tusks growing out of its mouth. This one was called the Erymanthian boar, because it lived on a mountain called Erymanthus. Every day the boar would come crashing down from his lair on the mountain, attacking men and animals all over the countryside, gouging them with its tusks, and destroying everything in its path.
Hercules chased the boar round and round the mountain, shouting as loud as he could. The boar, frightened and out of breath, hid in a thicket. Hercules poked his spear into the thicket and drove the exhausted animal into a deep patch of snow.Hercules grabs the boar's head and raises his club to strike it. Then he trapped the boar in a net, and carried it all the way to Mycenae. Eurystheus, again amazed and frightened by the hero's powers, hid in his partly buried bronze jar.