In Paris, at the Academie des Sciences, on September 6, 1830, there was presented by Madame Hen, a midwife, a living male child with four legs, the anus being nearly below the middle of the third buttock; and the scrotum between the two left thighs, the testicles not yet descended.

There was a well-formed and single pelvis, and the supernumerary legs were immovable.

Aldrovandus mentions several similar instances, and gives the figure of one born in Rome; he also describes several quadruped birds.

Bardsley speaks of a male child with one head, four arms, four legs, and double generative organs.

He gives a portrait of the child when it was a little over a year old.