12 Annals of the Carnegie Museum. 



a slight transverse convexity of the bridges (in the type they are some- 

 what concave) on account of its close resemblance in form and other 

 features is referred to the present species. Its close resemblance to 

 the type is clearly shown by a comparison of Plates i and li. 



Explanation of Plate I. 

 Fig. I. Carapace of Glyptops utahensis. Tj^pe, No. 3412, Carnegie Museum 



44 

 Cat. Foss. Vert. X ^^^. 

 100 



44 



Fig. 2. Plastron of the same. X • 



100 



Explanation of Plate II. 

 Fig. I. Carapace of Glyptops utahensis. Paratype, No. 3380, Carnegie Mu- 



40 



seum Cat. Foss. Vert. X . 



100 



40 



Fig. 2. Plastron of the same. X • 



100 



