Agacephs were a breed of Argonian who had extremely thin faces that were described by some as "needle-like" and possessed eyes that resembled vertical slits. They did not possess one uniform scale color like the Naga, a breed of Argonians who all possessed black scales, but scale color differed greatly between individuals. Some had bright green scales others possessed purple, blue, white, orange, yellow, and red scales.
They lived in the innermost swamps of Black Marsh and traveled through the marshes on extremely thin rafts that they guided with their tails. They generally possessed a low opinion of the Archeins due to their meddling in slave trading with the Dunmer of Morrowind, their extortion of the other Argonians, and their assimilation into Imperial culture.