The Gallamites were a spacefaring humanoid species. They had "toothy smiles," and transparent skulls through which brains twice the size of a Human's were visible. During the Dominion War, the Gallamites contributed duranium to the Federation. (DS9: "The Maquis, Part I", "Penumbra")
This species was only mentioned in dialogue. An alien being which might be interpreted as having a transparent skull and toothy smile appeared in "The Girl Who Made the Stars".
The Gallamites were mentioned in the pronunciation guide of the script of "Paradise
", but not in the script itself. It is possible that the references were removed in an early draft.
External link Edit