566 FOSSIL TURTLES OF NORTH AMERICA. 
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PLATE 88. 
Conchochelys admirabilis. Skull of type, view from above. X %. No.6090 A. M.N. H. 
Conchochelys admirabilis. Same skull, seen from below. X %. 
. Conchochelys admirabilis. Same skull, seen from right side. X ¥%. 
Helopanoplia distincta. Fragment of costal type. <1. U.S.N.M. 
Helopanoplia distincta. Portion of plastral bone of type. X1. U.S.N.M. 
. Aspideretes coalescens. Fragment of costal. X 1. Shows the sculpture. From photo- 
graph furnished by L. M. Lambe. 
. Aspideretes splendidus. Portion of distal third of second costal of type. 1. No. 3952 
A.M.N.H. Shows character of sculpture. 
Aspideretes splendidus. Portion of distal end of fourth costal of type. X 1. 
. Aspideretes splendidus. Portion of proximal half of third costal. X 1. 
PLATE 80. 
. Aspideretes foveatus. Carapace. X 0.5. From photograph by L. M. Lambe. Specimen 
in coll. Geol. Surv. Canada. 
Aspideretes foveatus. Right hypoplastron. x 1. From drawing by L. M. Lambe. Speci- 
men in coll, Geol. Surv. Canada. 
PLATE 90. 
Aspideretes coalescens. Carapace. 0.25. From photograph by L. M. Lambe. Speci- 
men in coll. Geol. Surv. Canada. 
. Aspideretes beecheri. Carapace. X 4. No. 2358U.S.N.M. 
PLATE QI. 
Aspideretes splendidus. Carapace of type. 0.28. No. 3952 A. M.N.H. 
PLATE Q2. 
Aspideretes beecheri. Carapace and part of neck, limbs and tail of type. X 0.25. Speci- 
men in Yale Univ. coll. Photograph by Wieland. 
Aspideretes beecheri. Plastron of type. 0.25. Photograph by Wieland. 
PLATE 93. 
Aspideretes sagatus. Carapace of type. X %. No.1201 A. M.N. H. 
Aspideretes sagatus. Portions of neurals and costals, to show sculpture. X 1. From type. 
. Aspideretes sagatus. Distal portion of a costal. X 1. From type. 
PLATE 4. 
Aspideretes puercensis. Carapace of type. X05. No.1202A.M.N.H. 
Aspideretes puercensis. Portion of first costal of type, taken near center. X I. 
Aspideretes puercensis. Portion of proximal end of third costal of type. X 1. 
PLATE 95. 
Aspideretes ellipticus. Carapace of type. X04. No.1117A.M.N.H. 
. Aspideretes ellipticus. Portion of fifth neural and of fifth and sixth costals of type. 
= <1. To show character of sculpture. 
Aspideretes ellipticus. Portion toward distal.end of fifth costal of type. X 1. 
PLATE 96. 
Aspideretes beecheri. Portions of two costals of type, to show sculpture. X I. 
Aspideretes beecheri. Portion of costal to show sculpture. X 1. No. 2358U.S.N.M. 
Aspideretes vagans. Type fragment of costal. x1. No.1847A.M.N.H. 
Amyda? halophila. Neural and part of costal of type. x1. No.1476A.M.N.H. 
Amyda? halophila. Fragment of costal. X1. No.1476A.M.N.H. 
. Amyda? pennata. Costal forming type. X 1. No. 1165 A.M.N.H. 
Amyda? virginiana. Portion of costal of type. 1. In coll, Maryland Geol. Surv. 
Amyda? virginiana. Second portion of costal of type. X 1. In coll. Maryland Geol. Surv. 
