Duck Skull

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“Fig 63 - Skull of a duck (Clangula islandica), nat. size; Dr. R.W. Shufeldt, U.S.A. a, premaxillary bone; b, partly ossified internasal septum; b’, pervious part of nostril; c, end of premaxillary, perforated form numerous branches of second division of the fifth cranial nerve; d, dentary bone of under mandible; e, groove of nerves, etc.; f, a vacuity between dentary and other pieces of the mandible; g, articular surface; h, recurved “angle of the jaw;” i, occipital protuberance; j, vacuity in supraoccipital bone; k, muscular impression on back of skull; l is over the black ear-cavity; m, post-frontal process; n, quadrate bone; o, pterygoid; p, palatine; q, quadrato-jugal; r, jugal; s, maxillary; t, fronto-parietal dome of the brain-cavity; u; u, the lacrymal bone, immense in a duck, nearly completing rim of the orbit by approaching m; v, vomer; w, supra-orbital depression for the nasal gland; x, cranio-facial hinge; y, optic foramen; z, etc. interorbital vacuities.” Elliot Coues, 1884


Bird Anatomy


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


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