339 



Chelonia. 



Testudinid,E; 



TESTUDO. 



Testudo Corsoni. 



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

 tana, 1872, 366. 



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

 Montana, 1872, 367. 



Described page 132, and represented in Figs. 1, 2, Plate XI, 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. 18.32, 



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



of Dakota and Nebraska, 1869, 26. 

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



Nebraska, 1853, 103 ; Ext, Mara. Fauna of Dakota and Nebraska, 1S69, 26. 



See page 223. Cope : Ext. Batracbia, &c. 1870, 124. 

 Emys s. Testudo hemispheriea, Oweni, Culbertsoni, 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 Culbertsonii. Cope : Ext. Batracbia, &c. 1870, 124. 



Noticed page 224 under the name of Stylemys nebrascensis, and further 

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



All the turtle remains from the Mauvaises Torres 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 : 



Inches. 



Length of carapace in the curve 27 



Breadth of carapace in the curve 26 



Length of plastron , . . . 20 



Breadth of plastron 15 



Height of shell above the level 8 



