. Birds. Birds. PASSERES. 11 of tlie essential features oF this organ, in so far as tliey concern the systematist, may be welcome. The syrinx is the term applied to the lower end of the wind- pipe and the adjacent ends of the bronchi in birds, wlierein these portions have become variously moditied to form the organ of voice, \\hich, in Mammals, is formed by the larynx—the upper eud of the windpipe. But while in the Mammals the larynx is a comparatively stable structure, in the birds the syrinx presents a very remarkable range of differences both in regard to its funda- mental structural charac
. Birds. Birds. PASSERES. 11 of tlie essential features oF this organ, in so far as tliey concern the systematist, may be welcome. The syrinx is the term applied to the lower end of the wind- pipe and the adjacent ends of the bronchi in birds, wlierein these portions have become variously moditied to form the organ of voice, \\hich, in Mammals, is formed by the larynx—the upper eud of the windpipe. But while in the Mammals the larynx is a comparatively stable structure, in the birds the syrinx presents a very remarkable range of differences both in regard to its funda- mental structural characters, as well as of musculature. For the present it nnist suffice to give a brief survey of the essential features of the syrinx in the Passeres and, for systematic purposes, the musculature is the dominant factor. The syrinx, then, in this Group presents wide contrasts, even among Grenera of the same Family, but nevertheless it conforms in its essential characters with that of the Aves as a whole. That is to say, it is formed of a number of bony or carrihiginous rings and semi-rings—some of which may be com- pletely or partially Melded—held together by thin membranes whicli" serve not merely to support the framework, but also in tlie production of the " ; In the Anisomyodi the syringeal muscles are inserted either in the middle or on to the dorsal or ventral ends of 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 Baker, E. C. Stuart (Edward Charles Stuart), 1864-1944; Oates, Eugene William, 1845-1911; Blanford, William Thomas, 1832-1905. London : Taylor & Francis
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbirds, bookyear1922
