Ar An hwWN YH 
An bwnd He 
INDEX OF PLATES. 563 
PLATE 55. 
Trachemys hilli. Carapace of type. 0.7. No. 2425 A. M.N.H. 
PLATE 56. 
. Trachemys bisornata. Part of carapace. X o8. Specimen in coll. Phila. Acad. 
. Trachemys trulla. Part of epiplastra,lower surface. X 0.8. Type, No. 3934 A. M. N. H. 
. Trachemys trulla. Same bones, upper surface. 0.8. 
. Trachemys trulla. Right hyoplastron of type. X08. 
. Trachemys trulla. Right hypoplastron of type. X08. 
. Trachemys trulla, Left xiphiplastron of type. X 08. 
. Terrapene putnami. Left hyoplastron forming type. 4%. In A.M.N.H. 
. Terrapene putnami. Same bone showing lateral hinge. x 3%. 
PLATE 57. 
. Pseudemys celata. Nuchal. 
. Pseudemys celata. Fifth left costal. 
. Pseudemys celata. Left third peripheral. 
Pseudemys celata, Left tenth peripheral. 
. Pseudemys celata. Left hypoplastron. 
. Pseudemys celata. Left first costal of smaller individual. 
All figures slightly less than natural size. From type, No. 2508 U. S.N.M. 
PLATE 58. 
1. Terrapene marnochi. Carapace, side view. X 0.625. No. 3936 A. M.N. H. 
to 
to RwWN He 
ty 
ty 
tN 
. Terrapene marnochi. Same carapace, upper view. 
PLATE 50. 
. Hadrianus majusculus, Shell of the type. x 0.25. In Yale Univ. coll, 
. Stylemys nebrascensis. Skull, upper side. X 1. Princeton Univ. coll. 
. Stylemys nebrascensis. Same skull, lower side. 1, 
. Stylemys nebrascensis. Egg. 1. A.M.N.H. 
PLATE 60. 
Hadrianus corsoni. Carapace. 0.375. No. 6027 A. M.N.H. 
PLATE 61. 
Hadrianus corsoni. Plastron. X 0.375. No. 6027 A. M. N. H. 
PLATE 62, 
. Stylemys nebrascensis. Carapace. X 0.5. No. 1433 A.M. N.H. 
. Stylemys nebrascensis. Plastron of same shell. X 0.5. 
PLATE 63. 
. Stylemys capax. Carapace of type. X 0.28. No. 1357 A. M.N.H. 
. Stylemys capax. Plastron of type. * 0.28. 
PLATE 64. 
. Stylemys conspecta. Carapace of type. 0.45. No.1358A.M.N.H. 
PLATE 65. 
. Testudo brontops. Carapace of type. 0.15. In Yale Univ. coll. 
. Testudo brontops. Plastron of type. ™ 0.15. 
PLATE 66. 
. Testudo thomsoni. Front of plastron of type. 05. No. 3040 A.M.N.H 
. Testudo thomsoni, Skull of type, upper side. X 0.8, 
