Fiji Mermaid

The Fiji mermaid (also Feejee mermaid) was an object comprising the torso and head of a juvenile monkey sewn to the back half of a fish, covered in papier-mâché. It was a common feature of sideshows, which was presented as the mummified body of a creature that was supposedly half mammal and half fish, a version of traditional mermaid stories.

Read more about Fiji Mermaid:  History, Later Incarnations