84 BUREAU OF AMERICAN ETHNOLOGY [pubu, 44 
The province of Burica extended toward the east to the Llanos of Chiriqui, and 
formed a part ef the government of Quepo. It belongs today to the district of Punta 
Arenas. 
The Terrabas, who have given their name to the river formerly called the Coto, do 
not belong to the tribes of the Pacific Slope. They were brought to the location there, 
which they now occupy, in Aldea or Terraba, partly by the persuasion of the mis- 
sionaries, partly by force, having been obliged to abandon the rough mountains to 
the north about the headwaters of the Tilorio or Rio de la Estrella, the Yurquin, and 
the Rovalo, about the year 1697. They have been variously called Terbis, Terrebes, 
Terrabas, and Tirribies, but there are no differences of dialect between them and 
their relatives to the north, other than would necessarily take place in any tongue 
from a separation of this length. 
At the time of the Conquest, therefore, the tribes occupying the territory of Costa 
Rica were Nahuas, Mangues, Guetares, Viceitas, Terrabas, Changuenes, Guaymies, 
Quepos, Cotos, and Borucas. 
. It is almost impossible to determine the ethnic affinities of the Guetares as 
long as no vocabularies of their tongue can be found, though such were certainly 
written by such able linguists as Fray Pedro de Betanzos, Fray Lorenzo de Bienve- 
nida, Fray Juan Babtista, and other Franciscans, who founded missionary: establish- 
ments and taught the natives around Cartago; but the testimony of archaeology 
proves that if they were not related to the Nahuas, they were subject to their influ- 
ence, perhaps through the active commerce they had with the Chorotegas and Nahuas 
about the gulf of Nicoya. ; 
. As to the Guaymies, Terrabas, Changuenes, aca Borucas, their affinities to 
the tribes to the east of them are well marked, and it would not be surprising if they 
were also closely related to the natives between Paria and Darien, and even with the 
Chibchas of Colombia, as has been maintained by Brinton. 
GUATUSO 
The eastern and western boundaries of the Guatusan area on the 
map are based largely on inference, rather than on positive evidence. 
That the tribe occupied the valley of the Rio Frio to the San Juan 
river, and the region about the headwaters of the former, is the 
general consensus of the authorities. There is some evidence also 
that they frequently wandered down the San Carlos river, and Carl 
Sapper (1 : 31) speaks of a small body on a branch of the Sarapiqui. 
Gabb (483) states merely that,at the time of his visit— 
They occupy a part of the broad plains north and east of the high volcanic Be of 
North-Western Costa Rica and south of the great lake of Nicaragua, especially about the 
headwaters of the Rio Frio. 
Fernandez (3:676) says: 
The lands occupied by the Guatusos are very extensive, level, fertile, and inter- 
sected by navigable rivers, with a slight incline from the right bank of the San Juan 
river to the Central Cordillera, which divides the waters of the Atlantic and Pacific. 
Bishop Thiel (2 : 12) says they live dispersed in the skirts of the 
Cerro Pelado, of the Tenorio, and on the banks of the affluents of the 
Rio Frio, principally between the Pataste, the Muerte, the Cucaracha, 
and the Venado. He appears to have succeeded in obtaining a 
vocabulary of their language, judging from that given in his Apuntes 
