KEFflLIA. 



59 



Some of the tortoises of the Tertiary are of immense size, 

 Colossochelys, for example, being twelve feet long and six high. 



No. 89. [281] Testudo hemispherica, Leidy. 



Carapace and Plastron (cast). 

 The Carapace is high and convex, 

 and the vertebral plates from the 

 second to the eighth inclusive, are 

 , hexahedral. This specimen was 

 found in the Mauvaises Terres of 

 Nebraska (Lovrer Miocene), and is 

 in the Ward Collection, University 

 of Rochester. Size, 9x7. 



No. 90. [283] Emys Hamiltonoides, Falc. and Cant. 



Carapace and Plastron (cast). This tor- 

 toise was found in the Sewalik Hills, India 

 (Miocene), and is now in the British Museum. 



Size, 12 X 8. 



No. 91. [1289] Platichelys Oberndorferi, Wagner. 



Carapace (cast). This specimen shows the dorsal scales or scutes, which 

 are in low pyramidal relief and quite ornate, as in the modern Emys insculpta. 

 From the same locality and museum as the preceding. Size, 12 x 11. 



No. 92. [286] Chelonemys ovata. 



Carapace, ventral surface (cast). In this 

 unusually perfect specimen the body is pre- 

 served entire, with the head and extremities 

 extending beyond the contour of the shell. 

 From the lithographic quarries (Middle Oolite) 

 at Cirin, France, and now in the Museum of 

 Natural History of Lyons. Size, 10 x 8. 



