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 ; DasypiLS (4 sp.), Brazil to Bolivia, Chili, 

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

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

 Chla7nydophorus (2 sp.), near Mendoza in La Plata, and Santa 

 Cruz de la Sierra in Bolivia. 



Extirwt Armadillos. — Many species of Dasypus and Xcnurus 

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

 extinct genera — Hoplojjiiorus, 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^. (1 Genus, 2 Species.) 



General Distribution. 



NiOTBOPICAL 

 SUB-KEGIONS. 



Nearctic 

 Sub-regions. 



PaL/Earctic Ethiopian [ Oriental I Australian 



SUB-KEOIONS. SUB-REUIONS. Sl'B-REGlOXS. SUB-REGIONS. 



The Aard-vark, or Cape ant-eater {Orycteropus capcnsis) 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 Oryctcropodidoe. — 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. 



