Mephitis
Mephitis, the original planet of the Mephitisian people, was a peculiar place. The native inhabitants lacked the ability to perceive odors. For those arriving from other worlds, the planet's air possessed an overwhelmingly unpleasant odor.
Behind the scenes
The Roman deity Mefitas, associated with noxious fumes rising from marshy areas, served as the inspiration for this planet. The Mephitisians, along with their planetary origin, are undeniably a reference to Mefitas.