562 FOSSIL TURTLES OF NORTH AMERICA. 
8. Clemmys saxea. Pygal of type. x1. No. 2192 Univ. Cal. coll. 
9. Clemmys saxea. Same bone, inner surface. ™ 1. 
10. Clemmys saxea. Tenth left peripheral of type. % 1. 
11. Echmatemys sp. indet. Skull, upper view. 1. Princeton Univ. coll. 
12. Echmatemys sp. indet. Same skull, lower view. I. 
13. Echmatemys sp. indet. Same skull, right side. X 1. 
14. Echmatemys megaulax. Neural bone. x1. No. 1184 A.M.N.H. 
15. Echmatemys megaulax. Peripheral bone. X 1. No.1184A.M.N.H. 
16. Echmatemys testudinea. Third and fourth right peripherals. x 0.8. No. 1178 A. M.N.H. . 
17. Echmatemys testudinea. Sixth costal. X08. No.1179 A.M. N.H. 
PLATE 46. 
1. Echmatemys euthneta. Part of plastron. X 0.96. No.1176A.M.N.H. 
2. Chrysemys timida. Carapace of type. 0.62 of natural size. No. 10853 Princeton 
Univ. coll. 
3. Trachemys petrolei. Two epiplastra of different individuals. 0.8. Cotypes. No. 3933 
A. M.N.H. 
4. Trachemys petrolei. Nuchal bone accompanying cotypes. % 08.. No. 3933 A. M.N. H. 
PLATE 47. 
. Echmatemys wyomingensis. Plastron viewed from above. X 0.4. A.M.N.H. 
. Echmatemys haydeni. Plastron viewed from, above. Xo0.4. A.M.N.H. 
Now 
PLATE 48. 
1. Echmatemys stevensoniana. Carapace of type. Xx 0.4. No. 6084 A.M. N. H. 
2. Echmatemys stevensoniana. Plastron of same specimen. 0.4. 
PLATE 49. 
1. Echmatemys arethusa. Carapace of type. 0.5. No.5920A.M.N.H. 
2. Echmatemys arethusa. Plastron of type. 0.5. 
PLATE 50. 
1. Echmatemys shaughnessiana. Carapace of type. 0.375. No. 1069 A. M. N. H. 
2. Echmatemys shaughnessiana. Plastron of type. 0.375. 
PLATE 51. 
1. Echmatemys naomi. Carapace of type. < 4%. No.5975A.M.N.H. 
2. Echmatemys naomi. Plastron of type. X Me 
PLATE 52. 
1. Echmatemys callopyge. Carapace of type. X 0.3. No. 2087 A.M. N.H. 
. Echmatemys callopyge. Plastron of type. 0.3. 
Ny 
PLATE 53. 
1. Echmatemys uintensis. Carapace of type. 0.3. No. 11108 Princeton Univ. coll. 
. Echmatemys uintensis. Plastron of type. 0.3. 
iS) 
PLATE 54. 
. Deirochelys floridana. Nuchal forming type. X 0.8. In coll. Vanderbilt Univ. 
. Deirochelys floridana? First costal. 0.8. In Vanderbilt Univ. 
. Trachemys euglypha? Nuchal. X08. In Wagner Free Inst. 
. Trachemys sculpta. Nuchal forming type. X08. In coll. Vanderbilt Univ. 
. Trachemys sculpta. Third? costal. 0.8. In coll. Vanderbilt Univ. 
and 7. Trachemys sculpta? Neural bone. X08. Same coll. 
Trachemys sculpta? Costal bone. X08. Same coll. 
. Trachemys sculpta? Costal bone. X 0.8. Same coll. 
. Trachemys? jarmani. Nuchal forming type. X08. In coll. Vanderbilt Univ. 
. Trachemys? jarmani? Right eighth peripheral. 0.8. Same coll. 
. Trachemys? jarmani? Proximal end of costal. “X 0.8. Same coll. 
. Pseudemys extincta. Nuchal forming type. X 0.8. Same coll. 
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