A somewhat similar case, possibly the same, is that of Blanche Dumas, born in 1860.

She had a very broad pelvis, two imperfectly developed legs, and a supernumerary limb attached to the symphysis, without a joint, but with slight passive movement.

There was a duplication of bowel, bladder, and genitalia.

At the junction of the rudimentary limb with the body, in front, were two rudimentary mammary glands, each containing a nipple.
Other instances of supernumerary limbs will be found in Chapter VI.
CLASS X .-- The instances of diphallic terata, by their intense interest to the natural bent of the curious mind, have always elicited much discussion.

To many of these cases have been attributed exaggerated function, notwithstanding the fact that modern observation almost invariably shows that the virile power diminishes in exact proportion to the extent of duplication.