This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Mannegishi (Cree)
Mannegishi are creatures that belong to the mythology of the Cree Indians of eastern Canada. They are described as pygmy, human-like entities, with long thin legs and arms. They are said to have twelve fingers (six on each hand). Their round hairless, heads, with large eyes and no nose, are quite big in comparison to their small bodies.
According to the Cree Indians, the mannegishi are responsible for the pictographs found on rocks in the area, and their dwelling places are among the rocks near rapids. It is said that they are great tricksters and apparently enjoy playing pranks and jokes on humans.