This is a Graboid.
The graboids are fake sandworms from Tremors film series.
Snapping Jaws[]
Graboids have big jaws and can swallow a man whole. The burst up through the ground and grab their prey.
Weird, But True: Facts About The Graboids:[]
The graboids are based on the Mongolian Death Worm.
The graboids are like worms or grubs, with huge scaly bodies.