. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. WILLIAMS : MIGRATION OF EYE IN PSEUDOPLEUKONECTES. 23 su'orb. dx.), as but now described for the specimen that had lost the left eye, is the backward extension of a plate of cartilage which connects the right ect-ethmoid with the median mes-ethmoid arch. This flattened anterior portion of the right supraorbital cartilage corresponds to the tegmen cranii of the right side of the head in the salmon. The median mes-ethmoid arch is, at its anterior end, fused to this plate or partial irb. su'orb. dx. trh- ec^eth.
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. WILLIAMS : MIGRATION OF EYE IN PSEUDOPLEUKONECTES. 23 su'orb. dx.), as but now described for the specimen that had lost the left eye, is the backward extension of a plate of cartilage which connects the right ect-ethmoid with the median mes-ethmoid arch. This flattened anterior portion of the right supraorbital cartilage corresponds to the tegmen cranii of the right side of the head in the salmon. The median mes-ethmoid arch is, at its anterior end, fused to this plate or partial irb. su'orb. dx. trh- ec^eth. s. I for. olf. Fig. C. From photograph of wax model of the facial cartilages of a large specimen of P. americanus intermediate between the stages shown in Fig. B. and Fig. D. Viewed from a point nearly in front, only a little to the right of the sagittal and a little above the horizontal plane, x 45. For meaning of lettering, see Abbreviations under Explanation of Plates. tegmen, but from the short region of fusion backward for some distance the two cartilages are merely crowded closely together, a distinct line of perichondrial connective tissue being found between them. The car- tilages then diverge, as may be seen in Figure C, and the median mass continues backward as the fused trabeculae cranii, while the higher, lateral portion, the right supraorbital bar (trb. su'orb. dx., Figs. O and 0'), passes upward and backward to the ear 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
Size: 1402px × 1783px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorha, bookcentury1800, bookdecade1860, booksubjectzoology
