1. The Elves; 2. The Dwarfs, or Trolls; 3. The Nisses; and 4. The Necks, Mermen, and Mermaids. How entirely arbitrary this division is, the student of Scandinavian folk-lore at once perceives. Yet it is perhaps as satisfactory as another. The fairies of Wales may be divided into five classes, if analogy be not too sharply insisted on. Thus we have, 1. The Ellyllon, or elves; 2. The Coblynau, or mine fairies; 3. The Bwbachod, or household fairies; 4. The Gwragedd Annwn, or fairies of the lakes and streams; and 5. The Gwyllion, or mountain fairies.
