Here is a list of mythical creatures beginning with this letter and I am constantly gathering information from each continent and continually updating.
Ankou (French)
Ankou appears as a man or skeleton wearing a black robe and a large hat that conceals his face, or, on occasion, simply as a shadow. He wields a scythe and is said to sit atop a cart for collecting the dead, or to drive a large, black coach pulled by four black horses and accompanied by two ghostly figures on foot.
Every parish in Brittany is said to have its own Ankou. In Breton tradition, the squealing of railway wheels outside one's home is supposed to be Karrigell an Ankou ("The Wheelbarrow of Ankou"). Similarly, the cry of the owl is referred to as Labous an Ankou ("The Death Bird"). The Ankou is also found on the baptismal font at La Martyre where he is shown holding a human head.