. Annual report. 1st-12th, 1867-1878. Geology. 772 GEOLOGICAL SUEVEY OF THE lower border of the keel is convex; the front border concave; their angle of union rounded off. The instances where the sternnm is entire have been cited; in other birds of prey the arrest of ossification is limited to very small parts of the hind border, usually a foramen, rarely a notch (Sarcwhamphus) on each side, one of which may be filled up, wholly or partially. Eyton figures two small notches on each side of the posterior border in Hierax bengalensis ; and both hole and notch on each side in Cathar
. Annual report. 1st-12th, 1867-1878. Geology. 772 GEOLOGICAL SUEVEY OF THE lower border of the keel is convex; the front border concave; their angle of union rounded off. The instances where the sternnm is entire have been cited; in other birds of prey the arrest of ossification is limited to very small parts of the hind border, usually a foramen, rarely a notch (Sarcwhamphus) on each side, one of which may be filled up, wholly or partially. Eyton figures two small notches on each side of the posterior border in Hierax bengalensis ; and both hole and notch on each side in Cathartes aura. In our specimen of Sarcorham- phus gryphus a faint indentation marks this posterior border on each, side, but in Pseudogryphus two well- defined notches of equal depth are CathartesaMra, observed On either Side Of the keel. Eyton states for the South American Condor: Sternum:— * * * Posterior margin in a young bird with two indentations, which are nearly obliterated in the old one.—(Osteologia Avium, p. 18.) Mr. F. A. Lucas, who kindly ex- amined the specimens of the Old World Vultures in the Natural Sci- ence Establishment at Eochester for us, writes me that, " You will notice that the right sternal foramen of Neophron is closed (referring* to a specimen sent to the Army Medical Museum); this was also the case with a second specimen, while a third, somewhat younger, had 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 Geological and Geographical Survey of the Territories (U. S. ); United States. General Land Office; United States. Dept. of the Interior. Washington, Govt. Print. Off.
Size: 1856px × 1346px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, bookpublishe, booksubjectgeology
