80 CHELONIA. 



17969. The imperfecb and flattened posterior extremity of a carapace 

 which may belong to a female of T. atlas. The dorsal 

 surface is much damaged, but the caudal shield is clearly 

 seen to have been divided. Cautley Collection. 



R. 326 f. The flattened posterior extremity of a carapace probably 

 belonging to a female. The area of the undivided caudal 

 shield is clearly shown ; while portions of the areas 

 occupied by the 5th vertebral and the 11th marginal 

 shields are also exhibited. This specimen is employed in 

 Falconer's restoration of the lateral borders of the anterior 

 lobe of the plastron of T. atlas. 



Transferred from the Indian Museum, 1880. 



16996. Part of the left side of the posterior lobe of the plastron. 

 This specimen exhibits the postinguinal portion of the 

 hypoplastral, and a large part of the xiphiplastral, although 

 the cornu of the latter is wanting. Cautley Collection. 



16917. The xiphiplastral cornua. Cautley Collection. 



16968. The left xiphiplastral cornu of an individual agreeing in 

 size with the preceding. Cautley Collection. 



16518. The right humerus, wanting the distal extremity. Figured 

 (Fig.) in ' Falconer's Palseontological Memoirs,' vol. i. pi. xxxi. 

 figs. 4, 5 (as a femur), and also by the present writer in 

 the ' Palaeontologia Indica,' ser. 10, vol. iii. pi. xix. fig. 2. 

 Falconer estimated this specimen as comprising only half 

 the original, and this view was adopted by the writer in 

 the restoration given in the figure cited. Subsequent 

 comparison shows, however, that not more than about one 

 third is really wanting ; and that the total length from 

 the head to the condyles was probably about 0,506 (20 

 inches), against 0,305 (12 inches) in an adult of T. ele- 

 pliantina. The proportions obtaining between this speci- 

 men and the cranium No. 39819 are very nearly the same 

 as those between the corresponding elements of the last- 

 named species. Cautley Collection. 



16912. The proximal extremity of a similar right humerus. Noticed 

 by the writer op. cit. p. 160, as No. 39820 a. 



Cautley Collection. 



39820. The proximal half of the left humerus. This specimen, 



