DISTRIBUTION OF EDENTATE MAMMALS 313 



been obtained in Southern Mexico. Southwards it passes 

 throughout South America as far as Paraguay, where Reng- 

 ger assures us it is common, and widely distributed. The 

 little Two-toed Ant-eater (Cyclothurus didactylus), a purely 

 arboreal form, is also found in Guatemala, Nicaragua, and 

 Costa Rica, but does not range so far south as the two 

 former species, though it extends throughout the great 

 Amazonian valley into Peru. 



The Dasypodidze, or Armadilloes, which contain the 

 third family of American Edentates, are more numerous 

 and more diversified in their characters than the two pre- 

 ceding families. The eighteen or twenty species generally 

 recognized by naturalists may be divided into four sub- 

 families and seven genera. The general area of their 

 distribution is rather larger than that of the Sloths and 

 Ant-eaters. One Armadillo, as has been already men- 

 tioned, goes as far north as Texas, and Armadilloes are 

 found all over the Argentine Republic down to Patagonia. 



The most remarkable of the Armadilloes, and one that 

 must form a sub-family by itself, is the little Pichy-ciego 

 of the Argentines (Chlamydophorus truncatus), which is 

 found in the sandy plains of the vicinity of Mendoza, and 

 also, as has been recently ascertained, near Bahia Blanca 

 in the eastern part of the Argentine Republic. A second 

 species of this genus, more recently discovered (C. retusus) 

 is met with in Bolivia. 



The typical Dasypodinte, consisting of about eleven or 

 twelve species divided among four genera, are distributed 

 all over the area of the family, south of Panama, but do 

 not rancre into Central America, so far as has hitherto 

 been ascertained. 



The Giant Kangaroo (Priodon gigas), which belongs to 



