Its heads were fused; it had two mouths and two noses; in each face an eye well conformed and placed above the nose; there was a third eye in the middle of the forehead common to both heads; the third eye was of primitive development and had two pupils.
Each face was well formed and had its own chin.

Buffon mentions a cat, the exact analogue of Moreau's case.

Sutton speaks of a photograph sent to Sir James Paget in 1856 by William Budd of Bristol.

This portrays a living child with a supernumerary head, which had mouth, nose, eyes, and a brain of its own.

The eyelids were abortive, and as there was no orbital cavity the eyes stood out in the form of naked globes on the forehead.