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THE AGUARA WOLVES. 247 
most all the interior of South America, that the 
whole group of indigenous canines is understood.* 
Although both the long and the short tailed Aguaras 
appear to be at least in part mixed in that semi- 
domesticity which savages can produce, we separate 
the first under the name of Dasicyon, because in 
aspect, disposition, and the form of their pupils, 
they appear to stand more nearly identified than 
the second with the diurnal dogs of the Old World. 
* We find, from late information, that within the last 
thirty-five years the indigenous dogs of the Indians have been 
gradually replaced by the domestic European, and that now it 
is difficult to find any even in the more remote parts of the 
interior. When we were in the country, this was not the 
case. 
