339 

 Chelonia. 



TESTUDINIDiE. 



TESTUDO. 



Testudo Coesoni. 



Leidy: Pr. Ac. Nat. Sc. 1871,154; 1872,268; Hayden's Eep. Geol. Siir. Mon- 

 tana, 1872, 3GG. 



Emys Carteri. Leidy: Pr. Ac. Nat. Sc. 1871, 228; Hayden's Eep. Geol. Sur. 

 Montana, 1872, 3G7. 



Described page 132, and represented in Figs. 1, 2, Plate XT, under the 

 name of Emys Carteri ; in Fig. 7, Plate XV ; Figs. 2 to 4. Plate XXIX, 

 and Figs. 1 to 4, Plate XXX. From the Bridger Eocene of Wyoming. 



Testudo nebrascensis. 



Leidy : Pr. Ac. Nat. Sc. 1852, 59 ; Owen's Eep. Geol. Sur. Wisconsin, &c. 1852, 



567 ; Ancient Fauna of Nebraska, 1853, 103, Plate XIX ; Ext. Mam. Fauna 



of Dakota and Nebraska, 1869, 20. 

 Stylemys nebrascensis. Leidy : Pr. Ac. Nat. Sc. 1851, 172 ; Ancient Fauna of 



Nebraska, 1853, 103 ; Ext. Mara. Fauna of Dakota and Nebraska, 1869, 26. 



See page 223. Cope: Ext. Batracbia, &c. 1870, 121. 

 Emys s. Testudo hemisjiherica, Owciti, Ciilbertsoni, et lata. Leidy: Pr. Ac. Nat. Sc. 



1851, 173, 327 ; 1852, 34, 59. Owen's Eep. Geol. Sur. Wisconsin, &c. 1852, 



568 to 572; Ancient Fauna of Nebraska, 1853, 105 to 110, Plates XX to 



XXIV. 

 Stylemys Gulbertsonii. Cope : Ext. Batracbia, &c. 1870, 124. 



Noticed page 224 under the name of SUjlemys nebrascensis, ;iud further 

 represented by Figs. 7, 9, 10, Plate XIX. 



All the turtle i-emains from the Mauvaises Terres of White River, Dakota, 

 which have come under my inspection, and which have been described under 

 the various names above indicated, I regard as having pertained to a single 

 species. This agrees so closely in the usual characters of living species of the 

 land tortoises, that I have placed it in the same genus, though it is subgeneri- 

 cally distinct. A mature and nearly perfect specimen of the shell in the 

 Museum of the Academy of Natural Sciences, obtained by Professor Hayden 

 in 1866, has the following dimensions : 



laches. 



Length of carapace in the curve : 27 



Breadth of carai)ace in the curve 26 



Length of plastron 20 



Breadth of plastrou 15 



Height of shell above the level 8 



