. Carnegie Institution di Washington la pubblicazione. EMYDIDiE. 299 Il noto resti di questa specie sono state raccolte in Wasatch letti del New Mexico settentrionale e sono state in un primo momento di cui da affrontare per la sua specie Emys latilabiatus ot la Bridger letti. I campioni menzionati da affrontare sono attualmente in U. S. Museo Nazionale e sono state esaminate dallo scrittore. Il tipo esemplare che capito da affrontare, è stato restaurato da frammenti allentati, e varie porzioni erano mancanti. La lunghezza del carapace ripristinato (fig. 375) è dato come 350 mm. Da ciò consegue che affrontare la figura non è la metà delle dimensioni di

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. Carnegie Institution of Washington publication. EMYDIDiE. 299 The known remains of this species were collected in the Wasatch beds of northern New Mexico and were at first referred by Cope to his species Emys latilabiatus ot the Bridger beds. The specimens mentioned by Cope are at present in the U. S. National Museum and have been examined by the writer. The type specimen, that figured by Cope, was restored from loose fragments, and various portions were missing. The length of the restored carapace (fig. 375) is given as 350 mm. It follows from this that Cope's figure is not half the size of nature, as is stated, but somewhat less. The width was close to 284 mm. The front was broad and rounded, the rear nearly truncate. The neurals are characterized by their great breadth as shown in the table herewith. The first suprapygal is 35 mm. long and 29 mm. wide. On none of the neurals is there any trace of a median keel. The first pygal was 35 mm. long and 29 mm. wide. The second appears to have been about 21 mm. long and 49 mm. wide. The nuchal bone had a width in front ot about 58 mm. The costal bones presented no considerable differences in the widths of their opposite ends. They are devoid of sculpture. One of them, probably the third, had a width of 24 mm. in the middle of its length and a thickness of 5 mm. On the inner surface of the first and near to its peripheral border is a short articular surface for the reception of the axillary buttress. This surface shows that the buttress did not ascend so high as did that of some species of the genus. Above the scar for the buttress is a low ridge, that per- taining to the rib of the first costal. Neural. Length. Width. 1 2 28 36 3 3° 34 4 26 36 5 *5 37 6 â 9 39 7 >4 40 8 22 37. 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 work.. Carnegie Instituti

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• bookauthorcarnegie
• bookcentury1900
• bookdecade1900
• bookyear1908