Mallard Duck Skull

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“Desmognathous skull of mallard duck, Anas boscas, nat. size, from nature, by Dr. R.W. Shufeldt, U.S.A. Letters before. In the “bound-palate” type, the vomer in either abortive, or so small that it disappears; when existing it is usually slender and tapers to a point in front; the maxillo-palatines are united across the median line, either directly or by means of ossification in the nasal septum; the posterior ends of the palatines and the anterior ends of the pterygoids articulate directly with the rostrum (as in schizognathism). This type is simply and perfectly exhibited by a duck in which the maxillo-palatine is a broad flat plate united with its fellow in mid-line; the oval sessile basipterygoid facets are far forward, opposite the very ends of the pterygoids.” Elliot Coues, 1884


Bird Anatomy


Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)


TIFF (full resolution)

1002×2400, 351.7 KiB

Large GIF

427×1024, 61.1 KiB

Medium GIF

267×640, 30.4 KiB

Small GIF

133×320, 10.8 KiB