What is "tenome"

Tenome (手の目, eyes of hand, or rather eyes on hand) is a Japanese mythical creature illustrated in the first book of Toriyama Sekien's series, Gazu Hyakki Yakō (画図百鬼夜行, "The Illustrated Night Parade of A Hundred Demons") as a man-like creature with its eyes not in its face, but in the palm of its hands.