. The Cambridge natural history. Zoology; Zoologia Geral. SKELETON 7 Birds, and certain Petrels, but dwindles almost to disappearance in some flightless forms such as the Dodo, the Kakapo {S'tringcrp^C), the extinct New Zealand Goose (Cnemiornis), and a good many Rails. The absence of a keel is characteristic of the other and smaller group of Birds, made up of the Ostrich, Ehea, Emeu and. Fig. 2.âSkeleton of the tnmk of a Falcon. C«, coracoid, â which articulates with the sternum {St) at f ; CV, keel of sternum ; Fii (67), furcula (clavicles) ; G, glenoid cavity for humerus ; .S', scai)ula ;
. The Cambridge natural history. Zoology; Zoologia Geral. SKELETON 7 Birds, and certain Petrels, but dwindles almost to disappearance in some flightless forms such as the Dodo, the Kakapo {S'tringcrp^C), the extinct New Zealand Goose (Cnemiornis), and a good many Rails. The absence of a keel is characteristic of the other and smaller group of Birds, made up of the Ostrich, Ehea, Emeu and. Fig. 2.âSkeleton of the tnmk of a Falcon. C«, coracoid, â which articulates with the sternum {St) at f ; CV, keel of sternum ; Fii (67), furcula (clavicles) ; G, glenoid cavity for humerus ; .S', scai)ula ; Un, uncinate iirocess; V, vertebral, and Sp, sternal, jiortion of rib. (PYom Wiedersheim.) Cassowary, Moa and Kiwi, which from the resemblance the sternum thus bears to a flat-bottomed boat (ratis) are known as Ratitae. Whether keeled or not, the breast - bone affords a surface of attachment to the principal muscles of the fore-limbs, and its anterior end supports the coracoids, as in Fig. 2. Various processes are in most cases developed on the sides of the sternum itself, behind its junction with tlic ri1)s, especially towards 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 Harmer, S. F. (Sidney Frederic), Sir, 1862-; Shipley, A. E. (Arthur Everett), Sir, 1861-1927. [London, Macmillan and co. , limited; New York, The Macmillan company
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