Title : The American journal of science
Identifier : americanjourna4271909newh ( find matches )
Year : 1880 ( 1880s )
Authors :
Subjects : Science
Publisher : New Haven : J. D. & E. S. Dana
Contributing Library : Smithsonian Libraries
Digitizing Sponsor : Biodiversity Heritage Library

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106 G. R. Wieland—On Marine Turtles. neuro-pleural series, or they have been so badly crushed as to render the general form and structure more or less doubtful, as in the case of the Carnegie Museum specimen that yielded such clear testimony to all the characters of limb organization; and even in the present instance the evidence is not so convinc- Fig. 2.
Text Appearing After Image:
Figure 2.—Protostega Copei, 1/7 natural size. Carapace of the type as mounted in the Yale University Museum, from little crushed but dissociated elements lacking those portions marked by an (x ) or else given in dotted outline. The portions actually present thus include a fine nuchal (with a nether process), the four first neurals and pygal with the three first margin- als perfect, together with eight pairs of pleuralia. The disk is then correctly indicated; but concerning doubts as to the existence of a large ninth pair of ribs in contact with the marginals consult the text. ing and complete as in Archelon, where the series of ribs is not only entire, but articulated. Nevertheless, owing to absence

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