Thisspiasians were a species of serpentine beings, characterized by their elongated, snake-like physiques and substantial beards; they were native inhabitants of the planet Thisspias. Possessing four [arms](/article/limb], Thisspiasians frequently concealed one pair beneath their clothing. Their sleep patterns involved only a few hours of sleep each day; however, their primary restorative method was a trance-like state that could range from several minutes to many hours, facilitating neurological recovery. Failure to enter this trance could lead to emotional instability and increased irritability. The tails of Thisspiasians aided in their movement across the rugged terrain of their native world, while their dense beards served as a defense against biting swarms of cygnats.
A notable Thisspiasian was Oppo Rancisis, a Jedi Master who held a seat on the Jedi Council at the time of the Battle of Naboo. During the reign of the Galactic Empire, another Thisspiasian, known as Ooris Bynar, operated as a bounty hunter. Additionally, Codo Keburr belonged to this distinctive species.