- called: dibrachius, if they have two arms
altogether (one for each twin),
tribrachius, if they have
three arms altogether, tetrabrachius, if they have four...
- have one
trunk and two heads, and may have two (dibrachius),
three (
tribrachius), or four (tetrabrachius) arms.
Survival rate is poor.
Craniopagus parasiticus:...
-
medical terms for the variations, e.g.
dibrachius means two-armed and
tribrachius means three-armed. Both
heads may
contain a
fully formed brain, or one...
-
Achradocystites schmidti `--+--+--
Comarocystites punctatus | |--
Comarocystites tribrachius | |--
Implicaticystis shumardi | `--
Implicaticystis symmetricus `--+--...
