This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Inapertwa (Aboriginal)
In Aboriginal mythology, the Inapertwa are the simple, ancestral creatures with which the Numakulla modelled all life (plant, animals, birds) on Earth, which they then formed into human beings. The "totems" of the Arrernte are named after individual Inapertwa formed into animals, then into humans.