Thaumatichthys is known from tropical oceanic waters worldwide.
Uniquely amongst deep-sea anglerfish, adult Thaumatichthys are benthic in nature; T. binghami and T. pagidostomus are found on the continental shelf between 1,000-2,000 m, while T. axeli is found in the abyssal zone at about 3,600 m [REF].