. Carnegie Institution of Washington publication. ID, Lower jaw. ii, Lateral view of same. Text-figs, id and ii.—Jaws of Aetohatus sulcatus (fossil). After Agassiz. Among the characters for A. narinari are: The edge of the under jaw and the margins of its pavement teeth present a flat curve which forms in the middle a blunt angle. Cuvier, in the Atlas to the volume "Pois- sons " of "Le Regne Animal" (1836-49) on plate 118, figure 4a, gives a figure (text-fig. 12) of a lower jaw of which the description reads " Dents de la Myliobate narinari.'' In the text, however, not
. Carnegie Institution of Washington publication. ID, Lower jaw. ii, Lateral view of same. Text-figs, id and ii.—Jaws of Aetohatus sulcatus (fossil). After Agassiz. Among the characters for A. narinari are: The edge of the under jaw and the margins of its pavement teeth present a flat curve which forms in the middle a blunt angle. Cuvier, in the Atlas to the volume "Pois- sons " of "Le Regne Animal" (1836-49) on plate 118, figure 4a, gives a figure (text-fig. 12) of a lower jaw of which the description reads " Dents de la Myliobate narinari.'' In the text, however, nothing could be found. The rounded outline of these teeth, as compared with the angled structure of Key West and Beaufort specimens, is very noticeable. The celebrated anatomist, Richard Owen (1840-45), in his "Odontography," copies both figures and descriptions (including the error) of Aetobatis narinari from Agassiz. This error was for Agassiz merely typographical, of course, and Text-fig. 12.—Lower jaw of ,1 , . J • ^1 ^ . u J. Myliobatis tiarinari, after IS, as has been shown, corrected m the text, but Cuvier. the same excuse can not be advanced for Owen. Owen comments upon the absence of the lateral teeth found in the Mylio- batids (by which he means Aetobatids of Miiller and Henle), upon the strength of the jaws which support and work such heavy teeth, approach- ing as they do close to the solidity of bone. However, Owen figures a section through the head of a dried A. narinari, showing the projecting lower jaw, calls attention to it, and remarks that it can be used in digging shellfish out of sandy bottoms for food. This figure is so small and 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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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1910, bookyear1914
