408 



FOSSIL TURTLES OF NORTH AMKRICA. 



under the museum's No. 1 145, but this author states that the anterior lobe does not belong to 

 the same individual as the posterior. No other parts of the skeleton belong with these plastral 

 bones. 



526. 



528. 



FIGS. 526-530. Testudo amphithorax. Portions of shell. 



526. Front of carapace. X$. No. 1139 A.M. N. H. c. p. i, part of first costal plate; nu. p., nuchal plate; nu.s, 



nuchal scute; per. i, part of first costal plate. 



527. Lateral view of part of shell. Xi- No. 1139 A. M. N. H. c. p. 5, fifth costal plate; hyo, hyoplastron; 



hypo, hypoplastron; per. 4, per. 7, per. u, fourth, seventh and eleventh peripherals; py, pygal; spy. i, 

 spy, 2, first and second suprapygals. 



528. Rear of carapace. Xj. No. 1139 A.M. N. H. c. p. 8, eighth costal plate; sc, supracaudal scute; spy. I, 



spy. 2, first and second suprapygals. 



529. Plastron. X}. Anterior half from No. 1 139 A. M. N. H.; posterior half from No. 1147 A. M. N. H. 



530. Upper surface of anterior end of plastron. Xj. No. 1139 A. M. N. H. enl, entoplastron; efi, epiplastron. 



531. Upper surface of left xiphiplastron. Xi- No. 1147 A. M. N. H. an, anal scute; fern, femoral scute; hypo, 



hypoplastron; xiph, liphiplastron. 



Another specimen, No. 1139, includes the anterior half of the plastron; a little more than 

 the right half of the anterior rim of the carapace; a little more than the left half of the 

 posterior rim, together with most of the bridge peripherals of that side and the distal ends of 

 several costals; the pygal and both suprapygals; the greater portion of the shoulder-girdle; 

 and unimportant parts of the pelvis. What appears to be Cope's third specimen consists of 

 the hypoplastron and the xiphiplastron of the left side. It has the number 1147. Most of the 



