Snoligoster

The Snoligoster is a large, crocodilian creature. The three unique things about the Snoligoster are the fact that it has no legs (or fins), it has three bony plates on its tail (almost exactly like a propeller), and it has a big spike on its back. The creature just wiggles its tail back and forth, causing the propeller like plates to spin, enabling the creature to move through the dense swamps. Its also is covered in long, thick hair. It is about as long as three normal sized men lying down.