It aliens

From the film It Came from Outer Space, a space ship crashes into the Arizonia Desert several of the aliens go out to search the area one finds two mechanics and steals their form. Their goal is to get components to fix their ship, but are constantly attacked by the human population of a small town, resulting in the death of a few of their race, but are still able to escape, and release all the people they had under mind control.


The aliens appear to be some sort of slug with a web like subtance covering most of its body exept its large singular eye.