306 BACKBONED ANIMALS. 
rhinoceros. The Giypiodon (Fig. 330) had a solid armor 
and was eight feet long. 
VALUE.—The native Botocudos use the armor of the tail as a 
trumpet, and the flesh is eaten. 
Fic. 331.—1, opossum. Imperfect-toothed animals: 2, sloth; 3, ant-bear; 
4, armadillo, 
Pangolins (Aanide).—These (Fig. 329) are the only 
Edentates found out of America, living in Africa and 
Asia. They are covered with scales arranged like tiles. 
The tail is extremely long, the claws powerful and long, 
so that they walk upon the sides of their feet. When mo- 
lested they roll up into balls like the armadillo. 
Order II. Sea-Cows (Sivenia). General Character- 
istics. —The sea-cows are amphibious, milk-giving animals, 
somewhat resembling the fishes in form. The teeth are 
well developed, the molars having flattened or ridged 
