FOSSIL MAMMAL GALLERY. 75 



(fig. 46), from the Siwalik deposits of India, an ally of the 

 African Okapi (p. 37), with which it is connected by Eellado- 

 therium of the Grecian Tertiary deposits. Another allied type 

 is Tragoceros, or Samotherium, from the Isle of Samos, of which 

 a skuU (fig. 47) is exhibited. 



In the " pavUion," or large room at the end of the gaUery, 

 are skeletons and bones of the Mammals of the order Edentata, 

 mostly from South America, including some fine specimens of 

 the great Ground-Sloths, the largest of which, the Megatherium, is 

 shown in the act of rearing itself on its hind-legs and powerful 



Fig. 16. — Skull of Sivatheriwm giganteum, an extinct Buminant fiom the 

 Pliocene Deposits of the Siwalik Hills, India. 



tail to seize and tear down the branches of a tree in order to 

 feed upon the leaves. That this was the habit of this huge 

 animal is clearly indicated by the structure of its bones and 

 teeth. The mounted specimen is not an actual skeleton, but is 

 composed of plaster casts of the real bones, most of which are 

 in the wall-case at the north side of the room. Of the Mylodon, 

 a smaller but nearly allied form, an almost perfect skeleton 

 is exhibited in a glass case near the Megatheriwrn. Close by is 

 a portion of the skin of one of these animals (Grypotherium listai), 

 from a cave in Patagonia, showing the hair, and also the nodules 

 of bone with which the inner surface is studded. Not far off is 



