What are the ghosts and monsters in ancient Chinese legends?

Mud Ghosts:

Spirits and monsters transformed by mud embryos and earth puppets.

(Liaozhai Zhiyi: "My fellow townsman, Tang Taishi, was very bold when he was a child, and once his cousin took him to the temple to play, he saw the glazed beads in the eyes of the mud ghosts in the hipped hall, big and bright, and liked them in his heart, so he secretly picked them out with his fingers and hid them and brought them home. After arriving home, his cousin suddenly could not speak. After a while sat up violently, sternly reproached: "Why dig my eyes!" Everyone was surprised, and Taishi then told what he had done in the temple. Then the family prayed and said, "A little kid doesn't know what he's doing, so don't be angry, I'll give it back to you right away." The ghost exclaimed, "In that case, I'm leaving." Saying this the cousin fell to the ground and closed his breath, and it was a long time before he awoke, bewildered as to what had happened. So the family quickly returned the glazed eyeballs.")