EXPLANATION OF PLATE XL 



Testudo Corsoni : 



Both specimens pertained to the same shell, and were originally described under the name 



of Enujs Carteri. They were discovered near Fort Bridger by Dr. Carter, and presented to 



the Academy of Philadelphia. 

 Fig. 1. The greater part of the plastron, its anterior extremity to the right, one-third the 



natural size. 

 Fig. 2. The anterior intermediate portion of the carapace, its front to the left, one-balf the 



natural size. 



