TESTUDINID-E. 117 



E. 1562. Portions of the carapace of a young individual of a species 

 of this genns agreeing closely in size with the preceding 

 specimen, and perhaps referable to the same species ; from 

 Hordwell. The fragments comprise the 3rd, 4th, 5th, 

 and 6th costals of the left, the 2nd costal of the right side, 

 the 6th neural, the two suprapygals, portions of the 7th 

 and 8th costals of the right side, and several marginals. 

 The marginals include the 1st and 2nd of the right side. 

 All the bones closely resemble those of Ocaclia sinensis. 



Hastings Collection. Purchased, 1855. 



30410 b. The imperfect right hypo- and xiphiplastrals of a much 

 larger individual; from Hordwell. This specimen indi- 

 cates an individual agreeing approximately in size with 

 P. crassa, No. 32349 ; but the proportions are different. 

 Thus while the length of the hypoplastral is 0,095 (3-73 

 inches) and its width 0,068 (2*65 inches), the length of 

 the femoral shield is 0,073 (2-85 inches). The xiphiplas- 

 tral is unfortunately imperfect at its distal extremity, but 

 it appears to agree closely in contour with the corresponding 

 bone of the type specimen. Hastings Collection. 



26651 a. The crushed shell of a very young individual ; from the 

 Upper Eocene of Apt, near Debruge (Vaucluse), Prance. 

 The carapace has been crushed nearly flat from side to side, 

 but the plastron is fairly well preserved. The neural bones 

 of the carapace, as well as the vertebral shields, are well 

 preserved, and agree closely with those of Ocaclia sinensis. 

 The antero-posterior elongation of the entoplastral is well 

 shown ; and the humero-pectoral sulcus is confined to the 

 hyoplastral. The right hyoplastral has been squeezed 

 partially over the entoplastral. 



Bravard Collection. Purchased, 1852. 



26651 b. The entoplastral of a much larger individual • from Apt. 

 The characteristic contour is well preserved. 



Bravard Collection. 



26651m. The right xiphiplastral ; from Apt. This specimen in- 

 dicates an individual of rather larger size than the type, 

 with the corresponding bone of which it agrees in contour. 



Bravard Collection. 



26651 n. A somewhat larger right xiphiplastral, probably referable 

 to this species ; from Apt. The postero-internal angle is 

 wanting. Bravard Collection. 



