Hydranencephaly (or hydrancephaly) is a type of cephalic disorder. These disorders are congenital conditions that derive from either damage to, or abnormal development of, the fetal nervous system in the earliest stages of development in utero.
Voyage to the Bottom of the Sea Cast. 1  Stars (2) EDIT Richard Basehart. 2  Guest Stars (287) EDIT Patrick Culliton. 3  Cameos (1) EDIT Seymour Cassel. 4  Writers (29) EDIT Harlan Ellison. 5  Directors (21) EDIT Alan Crosland Jr. 6  Crew (5) EDIT Peter Packer.
The people who made the movie and TV show Voyage to the Bottom of the Sea came up with some good ones, at a time when little was being done in the way of creating alternate worlds through special effects on television.