8 Real Life Dreadful Monsters That Ruling The Earth

6)Stygiomedusa Gigantea: Harry Potter

Look at the name of this thing. Stygiomedusa Gigantea. Stygian means relating to the River Styx, right there in Hades. Medusa is, of course, the snake-headed Gorgon. And Gigantea just means big ass. This is a big-ass Medusa on a river in Hell.
They also call it a giant, purple jellyfish. Its noggin-like bell is about a meter across, and its flappy tentacles are around 6 meters, or 36 feet, in length. It looks pretty much exactly like one of the Dementors from Harry Potter or, at the very least, a drowning victim from a Japanese horror film.