Paspa

The Paspa were a race of sentient bipeds. Their homeworld, Has-Schel, suffered a massive meteor strike several million years ago. The only life that could survive was limited to the blind, cave dwelling animals that eventually evolved into the Paspa species.

Biology
Paspa evolved without any kind of visual spectrum sensing organs. They did have a swelling on their foreheads which housed an organ that both sensed heat as well as emitted a high frequency sonic pulse that was used for echolocation.

The Paspa's skeleton was extremely flexible to allow them to fit through tight spaces in their underground habitat. They were able to shift their internal organs to avoid damage as well.

In addition to echolocation, all Paspa had evolved some degree of sensitivity to the Force. This granted them a Force-sight ability similar to the Miraluka.

Technology
Before being conquered by the Dosj'aa Alliance, the Paspa were just beginning to discover metallurgy. Their most interesting discovery was the harvesting and shaping of a rare crystal substance that displayed unusual conductive abilities.

Society
Paspa were communal creatures who lived in a series of large underground cavern systems. Over time they had begun to create tunnel systems to link their cavern villages together. They divided work evenly among the members of their community. A Paspa could one day be harvesting edible or medicinal fungi from the deep caves, hunting blind cave serpent-worms for food, caring for infants, or repairing cave-ins. This allowed any single Paspa to be able to perform any job necessary for survival.

The only members who did not take part of the communal workload were the Benjha. The Benjha were a fighting order made up of those Paspa who were strongest with the Force. They mastered a peculiar whirling form of martial art that took advantage of the speed, flexibility, and echolocation abilities inherent in the Paspa. The Behjha specialized in the use of dual triangular knives carved from the crystalline mineral.

Assassins for the Dosj'aa
When the Dosj'aa came to Has-Schel, the native Paspa tried to fight off their invaders. The Dosj'aa casualties were high, but the Paspa's cunning was no match for the technology of the alliance. The true turning point was when a member of the Benjha turned on his people, selling them out in exchange for power and riches promised him by the invaders.

After becoming a vassal world for the Dosj'aa Alliance, the Paspa were recruited as slave labor, since their natural abilities made them excellent miners. The Behjha, however, now under the command of the traitor, Nezra Uul, became assassins for the Alliance.

Behind the scenes
I've always been creeped out by blind cave dwelling animals. The Paspa were inspired by that. They've gone through too many designs to count, and only now do I feel I've hit on something that looks right.

Their blade weapons are lightsaber resistant, so in a small pack they can stand up to a lone Jedi.