. Carnegie Institution of Washington publication. . Figs. 71 AND 72. CJusternnn undatum. Carapace and plastron. 71. Plastron of No. 5932 A. X :}. Anterior lobe missing. 72. Carapace of No. 5959 A. \l. \. H. ,',. Areas of some bones not inapt. Many characters given by Cope as distinguishing this species from ('.. hebraicum are not conclusive. There is no appreciable difference in the sizes of the anterior lobes; nor do the intergular and gular scutes of C. undatum always start from a common point. So far as the writer has observed, the marginal scutes of C. hebraicum rise considerably hi
. Carnegie Institution of Washington publication. . Figs. 71 AND 72. CJusternnn undatum. Carapace and plastron. 71. Plastron of No. 5932 A. X :}. Anterior lobe missing. 72. Carapace of No. 5959 A. \l. \. H. ,',. Areas of some bones not inapt. Many characters given by Cope as distinguishing this species from ('.. hebraicum are not conclusive. There is no appreciable difference in the sizes of the anterior lobes; nor do the intergular and gular scutes of C. undatum always start from a common point. So far as the writer has observed, the marginal scutes of C. hebraicum rise considerably higher above the margins of the shell met the bridges than thev do in C. undatum. As will be shown below, there are important differences in the skulls. In the American Museum there are 4 large shells which are regarded as belonging to this species. In none of these are the boundaries of all the bones to be made our, altho in some of them many sutures mav be traced. No. 3932 (plate 22; text-tig. 71 1 was collected in 1893 in the Bridget beds of Wyoming, but the exact locality and level are unknown. The length along the midline is 43^ mm.; the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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