Akkruva

Akkruva (Avfruvva, Havfru) In FinnoUgric mythology, fish goddess worshipped in Lapland. Akkruva appeared as a mermaid, the upper part of her body human, her head covered with long hair, and her lower portion that of a fish. She was believed to rise from the sea combing her hair. When the goddess was in a beneficent mood she helped men catch fish, but she could also be destructive.