The bizarre head was of negro conformation and fully developed, and the colored skin was found to be due to the existence of pigment similar to that found in the black race.

The husband of the woman had a light brown skin, like an ordinary Fellah man, and it was ascertained that there were some negro laborers in port during the woman's pregnancy; but no definite information as to her relations with them could be established, and whether this was a case of maternal impression or superfetation can only be a matter of conjecture.
Fantastic monsters, such as acephalon, paracephalon, cyclops, pseudencephalon, and the janiceps, prosopthoracopagus, disprosopus, etc., although full of interest, will not be discussed here, as none are ever viable for any length of time, and the declared intention of this chapter is to include only those beings who have lived.
CLASS VIII .-- The next class includes the parasitic terata, monsters that consist of one perfect body, complete in every respect, but from the neighborhood of whose umbilicus depends some important portion of a second body.

Pare, Benivenius, and Columbus describe adults with acephalous monsters attached to them.

Schenck mentions 13 cases, 3 of which were observed by him.

Aldrovandus shows 3 illustrations under the name of "monstrum bicorpum monocephalon." Bustorf speaks of a case in which the nates and lower extremities of one body proceeded out of the abdomen of the other, which was otherwise perfect.