Marmennill
Appearance
In Scandinavian folklore, the Marmennill or Marbendill were merman with the ability to prophesy the future. Its female counterpart was the Margygur.
References
- Lesser creatures in Norse myths
- Curious Myths of the Middle Ages, By Sabine Baring-Gould, Rivingtons, 1873, page 504 [1]