Sabrina the Teenage Witch — Archie Comics
Issue: #29
"A Fish Called Esmerelda": It's 'fintastic' fun when Cousin Esmerelda turns herself into a mermaid, but her parents expect her back with human feet, so Sabrina must net this fish, or end up all wet!
Creators: Michael Gallagher, Dan Decarlo
Characters: Sabrina Spellman, Aunt Zelda Spellman, Aunt Hilda Spellman, Salem