X Klamath, Keane, App.  Stanford’s Comp. (Cent. and So.  Am.), 475, 1878
  (Yukas of his Klamath belong here).

Derivation:  From the Wintun word yuki, meaning “stranger;” secondarily, “bad” or “thieving.”

A vocabulary of the Yuki tribe is given by Gibbs in vol.  III of Schoolcraft’s Indian Tribes, 1853, but no indication is afforded that the language is of a distinct stock.

Powell, as above cited, appears to have been the first to separate the language.

GEOGRAPHIC DISTRIBUTION.

Round Valley, California, subsequently made a reservation to receive the Yuki and other tribes, was formerly the chief seat of the tribes of the family, but they also extended across the mountains to the coast.

PRINCIPAL TRIBES.

  Ashochimi (near Healdsburgh). 
  Chumaya (Middle Eel River). 
  Napa (upper Napa Valley). 
  Tatu (Potter Valley). 
  Yuki (Round Valley, California).

YUMAN FAMILY.

> Yuma, Turner in Pac.  R. R. Rep., III, pt. 3, 55, 94, 101, 1856 (includes Cuchan, Coco-Maricopa, Mojave, Diegeno).  Latham in Trans.  Philolog.  Soc.  Lond., 86, 1856.  Latham, Opuscula, 351, 1860 (as above).  Latham in addenda to Opuscula, 392, 1860 (adds Cuchan to the group).  Latham, El.  Comp.  Phil., 420, 1862 (includes Cuchan, Cocomaricopa, Mojave, Dieguno).  Gatschet in Mag.  Am.  Hist., 156, 1877 (mentions only U.S. members of family).  Keane, App.  Stanford’s Comp.  (Cent. and So.  Am.), 460, 479, 1878 (includes Yumas, Maricopas, Cuchans, Mojaves, Yampais, Yavipais, Hualpais).  Bancroft, Nat.  Races, III, 569, 1882.

  = Yuma, Gatschet in Beach, Ind.  Misc., 429, 1877 (habitat and dialects
  of family).  Gatschet in U.S.  Geog.  Surv.  W. 100th M., VII, 413, 414,
  1879.

  > Dieguno, Latham (1853) in Proc.  Philolog.  Soc.  Lond., VI, 75, 1854
  (includes mission of San Diego, Dieguno, Cocomaricopas, Cuchan, Yumas,
  Amaquaquas.)

> Cochimi, Latham in Trans.  Philolog.  Soc.  Lond., 87, 1856 (northern part peninsula California).  Buschmann, Spuren der aztek.  Sprache, 471, 1859 (center of California peninsula).  Latham, Opuscula, 353, 1860.  Latham, El.  Comp.  Phil., 423, 1862.  Orozco y Berra, Geografia de las Lenguas de Mexico, map, 1864.  Keane, App.  Stanford’s Comp. (Cent. and So.  Am.), 476, 1878 (head of Gulf to near Loreto).

  > Layamon, Latham in Trans.  Philolog.  Soc.  Lond., 88, 1856 (a dialect
  of Waikur?).  Latham, Opuscula, 353, 1860.  Latham, El.  Comp.  Phil.,
  423, 1862.

  > Waikur, Latham in Trans.  Philolog.  Soc.  Lond., 90, 1856 (several
  dialects of).  Latham, Opuscula, 353, 1860.  Latham, El.  Comp.  Phil.,
  423, 1862.

  > Guaycura, Orozco y Berra, Geografia de las Lenguas de Mexico, map,
  1864.