560 FOSSIL TURTLES OF NORTH AMERICA. 
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PLATE 30. 
. Toxochelys sp. indet. Neurals 2 to 8, suprapygal, pygal and peripherals. X 0.6. Speci- 
men in coll, Kansas Univ. 
. Toxochelys sp. indet. Neurals and suprapygal of same specimen, lateral view. 0.6. 
PLATE 31. 
. Toxochelys brachyrhina. Skull forming type, lower surface. X 0.5. Type in coll. Kansas 
Univ. 
. Porthochelys laticeps. Carapace of type. X %. Type in coll. Kansas Univ. 
. Porthochelys laticeps. Plastron of type. X %. 
PLATE 32. 
. Syllomus crispatus. Distal half of costal of type. X08. No.6134 A.M.N.H. 
. Syllomus crispatus. Part of costal of type. X 0.8. 
. Chelonia parvitecta. Costal forming type. 0.6. No.1318A.M.N.H. (On plate the 
size is wrongly given as %.) 
. Basilemys variolosa. Front of plastron. X 4%. From photograph by Lambe. Specimen 
in coll. Geol. Surv. Canada. 
. Basilemys imbricaria. Fragment of costal of type. X1. No.6102 A.M. N.H. 
. Basilemys imbricaria. Fragment of costal of type. X 1. 
. Basilemys imbricaria. Fragment of costal of type. X 1. 
PLATE 33. 
. Basilemys sinuosa. Carapace of type. 0.2. From photograph furnished by Field Mus. 
Nat. Hist. 
. Basilemys sinuosa. Plastron of type. X 0.2. 
PLATE 34. 
. Basilemys variolosa. Part of seventh peripheral of type, to show sculpture. x1. No. 
1465 A. M. N. H. 
. Compsemys victa. Fragment of costal, to show sculpture. I. 
. Compsemys victa. Right eighth costal. xX 1. No. 6096 A.M. N. H. 
. Compsemys obscura. Supposed second left costal. 1. Specimen in A. M. N. H. 
Adocus punctatus. Upper surface of xiphiplastron of type. 0.25. Yale Univ. coll. 
. Adocus beatus. Plastron. 0.25. Coll. A.M.N.H. 
. Adocus beatus. First right peripheral of same specimen. X 0.5. 
. Adocus lacer. Nuchal, 3 peripherals and part of costal. 0.25. No.1350A.M.N.H. 
PLATE 35. 
. Adocus punctatus. Carapace of type. 0.25. Yale Univ. coll. 
. Adocus punctatus. Plastron of type. % 0.25. 
PLATE 36. 
. Adocus lacer. Plastron of type. 0.25. No.1350A.M.N.H. 
. Adocus syntheticus. Plastron of type. X02. No. 1466 A.M. N.H. 
. Adocus agilis. Plastron of type. X 0.2. No.1466A.M.N.H. 
. Adocus petrosus. Right hypoplastron and two peripherals. 0.5. No.1482 A.M. N. H. 
PLATE 37. 
. Agomphus turgidus. Portion of plastron of type. X 0.5. No. 1481 A. M.N.H. 
. Agomphus turgidus. Both hyoplastrals, lower surface. X05. No.1479 A.M.N.H. 
. Agomphus turgidus. Same bones seen from in front. X 0.5. 
. Agomphus turgidus. Eighth, ninth and tenth, right peripherals of type. X 0.5. 
. Agomphus turgidus. Fourth neural and proximal ends of four costals of type. ™ 0.5. 
. Agomphus petrosus. Two peripherals and part of costal of type. X05. No. 1482 
A. M.N.H. 
. Agomphus petrosus. Fourth and fifth right costals of type. X 0.5. 
