THE WADSWORTH GALLERY. 



51 



No. 101. G-yrodus circularis. Large Ganoid fish, perfectly preserved in all 

 its parts ; two feet six inches long. 



Lithographic limestoae (Upper Oolite) : Wirtemberg. 

 85. 



No. 102. 



Hexaprotodon {Hippopotamus) 



sivalensis.^^ Skull two feet long. 



Miocene Tertiary: 



Sewalik hills, India. 



No. 103. 

 Megalonyx jeffersoni.^* 

 Skull. This extinct Sloth, a 

 congener of the Megatherium 

 and Mylodon, formerly in- 

 habited many parts of the 

 United States south of the 

 Ohio. It was first discovered 

 and described (1797) by 

 Thomas Jefferson, 

 President of the United States. 

 Pleistocene: Natchez, Mississippi. 



86. 



87. 





No. 184. Plesiosaurm macrocephalus.^'' A very perfect specimen of this 



