Many tribes have sub-tribes, bands, gens, clans and phratry.  Often very little information is known or they no longer exist.  We have included them here to provide more information about the tribes.

Aigspaluma (Shahaptian: people of the chipmunks ). The Klamath, Modoc, Shoshoni, and Paiute living on Klamath res. and its vicinity in Oregon. Gatschet in Cont. N. A. Ethnol., II, pt. I, xxxiii, 1890.

Akaitchis. A tribe said to have resided on Columbia r. not far from the mouth of the Umatilla, in Oregon (Nouv. Ann. des Voy., x, 78, 1821. Their location would indicate a Shahaptian division, but they can not be identified.