Within the intervening years, the shortage of onscreen appearances led to some main confusion concerning these unique aliens. For instance, their brow ridges made many followers assume these aliens had been associated to the Klingons not directly, and within the non-canonical e book Star Trek: Federation-The First 150 Years, the aliens had been former Klingon topics who rebelled towards the Empire.
Talking of books, the novelization of The Undiscovered Nation mistakenly recognized the Federation president as a long-haired model of a Deltan, the identical alien race because the very bald, very human-looking Ilia in Star Trek: The Movement Image.