Is it Shoshone or Shoshoni

Both "Shoshone" and "Shoshoni" refer to the same Native American people and their language. "Shoshone" is the more commonly used term, particularly in historical and anthropological contexts, while "Shoshoni" is often used to describe the dialect of the Shoshone language spoken by certain groups. The choice between the two can depend on regional usage or specific cultural contexts, but both terms are generally accepted.