This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Menehune (Hawaiian mythology)
Menehune are a mythological race of dwarf people in Hawaiian tradition who are said to live in the deep forests and hidden valleys of the Hawaiian Islands, hidden and far away from human settlements. The Menehune are described as superb craftspeople. They built temples, fishponds, roads, canoes, and houses. Some of these structures that Hawaiian folklore attributed to the Menehune still exist.
They are said to have lived in Hawaii before settlers arrived from Polynesia many centuries ago. Their favorite food is the banana, and they also like fish. Legend has it that the Menehune appear only during the night hours to build masterpieces. But if they fail to complete their work in the length of the night, they will leave it unoccupied. No one but their children and humans connected to them can see the Menehune.