From his epigastrium hung an imperfectly developed twin that had one thigh, hands, body, arms, and a well-formed head covered with hair, which in the normal position hung lowest.

There were signs of independent existence in the parasite, movements of respiration, etc., but its eyes were closed, and, although saliva constantly dribbled from its open mouth, nothing was ever ingested.

The genitals were imperfect and the arms ended in badly formed hands.

Bartholinus examined this monster at twenty-two, and has given the best report, although while in Scotland in 1642 he was again examined, and accredited with being married and the father of several children who were fully and admirably developed.

Moreau quotes a case of an infant similar in conformation to the foregoing monster, who was born in Switzerland in 1764, and whose supernumerary parts were amputated by means of a ligature.