This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Blemmyae (Medieval Bestiary)
Blemmyes are said to occur in two types: with eyes on the chest or with the eyes on the shoulders. Various species of mythical headless men were rumoured, in antiquity and later, to inhabit remote parts of the world. They are variously known as akephaloi (Greek 'headless ones') or Blemmyes and described as lacking a head, with their facial features on their chest.
These were at first described as inhabitants of ancient Libya or the Nile system (Aethiopia). Later traditions confined their habitat to a particular island in the Brisone River,[a] or shifted it to India. The first indirect reference to the Blemmyes occurs in Herodotus, Histories, where he calls them the akephaloi (Greek: "without a head").