Giant Shinidamachū

The Giant Shinidamachū was a demon who intended to absorb all of Kikyō's soul.

During the story
The Giant Shinidamachū was originally resting in a lake until Naraku's insects disturbed it. The Shinidamachū then attacked Kikyō and tried to devour all of her souls. However Inuyasha arrived in time and cleaved it in half.