This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Eldjotnar (Norse)
The Eldjotnar, better known as simply Fire Giants, are the dominant species of Muspelheim. They are a large Fomorian race closely linked and partially comprised of fire. Their entire civilization stems from and revolves around the Eternal Flame and they are ruled by the first and largest of their kind.
Some of the Eldjotnar are attributed hideous appearances with claws, fangs, and deformed features, apart from a generally hideous size. Some of them may even have many heads, such as Þrívaldi who had nine of them, or an overall non-humanoid shape; such were two of the children of Loki.