246 GEOGRAPHICAL ZOOLOGY. [PART iv. 



in south Texas, to 50 south latitude on the plains of Patagonia. 

 The distribution of the genera is as follows : Tatusia (5 sp.), 

 has the range of the whole family from the lower Eio Grande of 

 Texas to Patagonia; Prionodontes (1 sp.), the giant armadillo, 

 Surinam to Paraguay ; Dasypus (4 sp.), Brazil to Bolivia, Chili, 

 and La Plata ; Xenurus (3 sp.), Guiana to Paraguay ; Tolypeutes 

 (2 sp.), the three-banded armadillos, Bolivia and La Plata; 

 Chlamydophorus (2 sp.), near Mendoza in La Plata, and Santa 

 Cruz de la Sierra in Bolivia. 



Extinct Ai*madillos. Many species of Dasypus and Xenurus 

 have been found in the caves of Brazil, together with many 

 extinct genera Hoplophorus, Euryodon, Heterodon, Pachy- 

 therium, and Chlamydotherium, the latter as large as a rhino- 

 ceros. Eutatus, allied to Tolypeutes, is from the Pliocene de- 

 posits of La Plata. 



FAMILY 74 ORYCTEROPODID^E. (1 Genus, 2 Species.) 



GENERAL DISTRIBUTION. 



The Aard-vark, or Cape ant-eater (Oryderopus capensis) is a 

 curious form of Edentate animal, with the general form of an 

 ant-eater, but with the bristly skin and long obtuse snout of a 

 pig. A second species inhabits the interior of North-East 

 Africa and Senegal, that of the latter country perhaps forming a 

 third species (Plate IV. vol. i. p. 261). 



Extinct Orycteropodidce. The genus Macrotherium, remains of 

 which occur in the Miocene deposits of France, Germany, and 

 Greece, is allied to this group, though perhaps forming a sepa- 

 rate family. The same may be said of the Ancylotherium, a 

 huge animal found only in the Miocene deposits of Greece. 



