SWANTON] INDIAN TRIBES OF THE LOWER MISSISSIPPI VALLEY 330

 This would indicate that the tribe had formerly lived farther
north, in the neighborhood of the Chickasaw, and the fact is satis-
factorily established by statements of Tonti, Coxe, and Iberville. In
his Account of the Route from the Illinois by the River Mississippi to
the Gulf of Mexico the first-named author says, The Ionica
[Tunica], Yazou, Coroa, and Chonque are, one with the other, about
10 leagues from the Mississippi, on the river of the Yazou; the Sioux
[Tioux] 15 leagues above." a Coxe, who professes to give a list of
the Yazoo tribes in the order in which they were settled, places the
"Tihiou above the Yazoo. Tunica, and Koroa and below the Sam-
boukia and Ibitoupa." Finally, Iberville in 1699 was told of a tribe
called Thysia, which, if the names in the list in which it occurs are in
regular order, would have been that farthest up the Yazoo.c This
agrees with the name of no known tribe unless it be the one under
discussion, of which it might well be a misprint. The mention of a
Natchez village called Tougoulas (" Tou people ") at the same time
and by the same authority is proof, however, that part of the nation
had already removed.d Gatschet suggests its identity with the vil-
lage given as Thoucoue and gives Tougoulas a different interpreta-
tionc but the present writer does not believe his position well taken,
although Thoucoue may possibly have been a second Tioux village.
An interesting question presents itself in connection with the emi-
gration of this tribe from their earlier seats as to whether part of
these people were not perhaps identical with those Koroa encountered
by La Salle and Tonti S or 10 leagues below the Natchez, but who
afterward unaccountably disappear from history.f In the La Salle
narratives they are indeed never called anything else but Koroa, while
in later times they are always designated as Tioux. Yet there is evi-
dence, as we have seen, that the languages of the two were related,
and, furthermore, in a map dating from 1764 an "antient village
of the Tioux is located at about the point where the Koroa town
formerly stood-i. e., near Fort Adams, Miss.s Combined with the
friendly relations existing between the Koroa and the Natchez in
La Salle's time and the subsequent disappearance of this particular
branch of the Koroa we have an interesting though by no means
complete body of circumstantial evidence pointing toward such an
identification.
 In May, 1700, when the Bayogoula tribe destroyed their fellow-
 townsmen, the Mugulasha, Iberville states that they called to fill
 their places many families of Colapissa and Tioux, who had taken
 possession of their fields and cabins." What became of these Tioux
 aFrench, Hist. Coll. La., 82-83, 1846. e Creek Mig. Leg., f, 37.
 SIbid., 227, 1850. f See pp. 326-328.
 cMargry, Decouvertes, Iv, 180. o Jeffery, Amer. Atlas, map 27, 1776.
 d Ibid., 179. Margry, Decouvertes, iv, 429.