. The birds of America : from drawings made in the United States and their territories . 2.«3. AMERICAN WIDGEON. 259 curve, c efg, and is then convoluted or coiled in numerous folds. Therectum is 5\ inches long; the cceca 11 inches, their greatest diameter 6twelfths, for 2 inches at the commencement 2 twelfths, towards the end 2\twelfths, their extremity rounded. The trachea, h, is 7|- inches long; its diameter at the upper part 4 twelfths,gradually diminishing to 3|- twelfths; it then enlarges to 5 twelfths, andcontracts to 3^ twelfths at the commencement of the dilatation of the inferiorlary
. The birds of America : from drawings made in the United States and their territories . 2.«3. AMERICAN WIDGEON. 259 curve, c efg, and is then convoluted or coiled in numerous folds. Therectum is 5\ inches long; the cceca 11 inches, their greatest diameter 6twelfths, for 2 inches at the commencement 2 twelfths, towards the end 2\twelfths, their extremity rounded. The trachea, h, is 7|- inches long; its diameter at the upper part 4 twelfths,gradually diminishing to 3|- twelfths; it then enlarges to 5 twelfths, andcontracts to 3^ twelfths at the commencement of the dilatation of the inferiorlarynx, which is extremely similar to that of the Widgeon, but larger; therebeing an enlargement, i, formed by a number of the lowTer rings united, andto the left side a rounded bony tympanum^; the greatest transverse diameterof this part, from i toj, is 1 inch l twelfth. The bronchi, k k, are of mode-rate size, covered with a dense layer of adipose matter. AMERICAN WIDGEON. -fANAs Americana, Gmel. PLATE CCCLXXXIX.—Male and Female. This lively and very handsome Duck is abundant during winter
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Keywords: ., bookcentury1800, bookdecade1840, bookidbirdsofa, booksubjectbirds
