"Membranous labyrinth of Haliaetus albicilla (White-tailed Eagle), X2. a,b, cochlea; b, its saccular…
"Membranous labyrinth of Haliaetus albicilla (White-tailed Eagle), X2. a,b, cochlea; b, its saccular…
"Part of the superior vertical semicircular canal, showing its ampulla (which is the dilatation of the…
"Cochlea, X3. a, external, b, internal, cartilaginous prism; c, membranous zone; d, saccular extremity…
"Section of the cochlea, X3. a, vestibular surface of external cartilaginous prism, extending into d,…
"Muscles of a bird (accipiter nisus), after Carus, Tab. Anat. Comp., 1828, pl. 4. a, pharynx; b, trachea;…
"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…
"a, an inch of trachea, contracted to the utmost, the rings looking like alternating half-rings; b,…
"1, 2, left, two tracheal rings, separate. b; 1, 2, right hand, the same put together." Elliot Coues,…
"Bony labyrinth at the bottom of the trachea of the male Clangula islandica, seen from behind." Elliot…
"Very generally, in cranes and swans, the trachea enters the keel of the sternum, which is excavated…
"Coiling of the windpipe in the sternum of Grus canadensis. Sandhill Crane." Elliot Coues, 1884
"Gular pouch of bustard; a, tongue; b, the pouch, opening under a, hanging in front of c, the trachea,…
"Resipratory and vocal organs of the Rook, Corvus frugilegusm an Oscine Passerine bird; 1 a, tongue;…
"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…
"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…
"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…
"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…
"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…
"Hyoid bone; a, glosso-hyal, tipped with cartilage, its posterior horn being certo-hyals proper; b,…
"Glottis, or opening of trachea in the mouth; a, base of tongue; b, b, horns of hyoid bone; c, rima…
"Larynx viewed from before (below); a, thyroid bone or cartilage." Elliot Coues, 1884
"Larynx viewed from behind (above); a, thyroid bone; b, b, its appendages; c, cricoid; d, d, arytenoids;…
"Larynx viewed from the right side; a, thyroid; b, appendage; c, cricoid; d, arytenoid; f, f, cartilage…
"Larynx viewed from behind; a, thyroid; b, b, its appendages; c, cricoid; d, d, arytenoid." Elliot Coues,…
"Muscles of the larynx. thyro-arytenoids, or openers of the glottis" Elliot Coues, 1884
"Muscles of the larynx. Thyro-cricoids, posterior thyro-cricoids." Elliot Coues, 1884
"Last entire tracheal ring, viewed from below, crossed by the pessulus." Elliot Coues, 1884
"Bifurcation of trachea, and bronchi, viewed from below; a, pessulus, the bolt-bar, or "bone of divarication";…
"a, b, c, d, inferior laryngeal or syringeal muscles, not well made out in this figure; But typical…
"Uro-genital organs of male embryo bird; from Owen, after Muller. a, kidneys: b, ureters; c, wolffian…
"Uro-genital organs of female embryo bird; from Owen, after Muller. a, kidneys: b, wolffian bodies;…
"Uro-genital organs of female embryo bird; from Owen, after Muller. a, testis; b, epididymis; c, sperm-duct…
"Spermatozoa of domestic cock, greatly magnified." The spermatozoam or seminal animalcules, or male…
"Spermatozoa of domestic cock, greatly magnified." The spermatozoam or seminal animalcules, or male…
"Female organs of domestic fowl, in activity; from Owen, after Carus. a, b, c, d, mass of ovarian ova,…
"Meroblastic ovum (yelk) of domestic fowl, bat. size, in section; after haeckel. a, the thin yelk-skin,…
"Simorhynchus pusillus. Least Auk. Knob-nosed Auk. Bill small and simple. but stout for its length,…
"Simorhynchus pusillus. Least Auk. Knob-nosed Auk. Bill small and simple. but stout for its length,…
"Synthliborhamphus umizusume. Japanese Murrelet. Temminck's Auk. Bill more elongate and acute than in…
"Uria grylle. Black Guillemots. Bill much shorter than head, about equal to tarsus, straight, rather…
""Views of sternum and pectoral arch of the ptarmigan, Lagapus albus, reduced. Lateral view, with the…
"Views of sternum and pectoral arch of the ptarmigan, Lagapus albus, reduced; viewed from below. a,…
"Anthus Ludovicianus. Louisiana Pipit. American Titlark. Brown Lark. Wagtail. Bill blackish, pale at…
"Cotile riparia. Bank Swallow. lustreless mouse-brown; wings and tail fuscous. Below, white, with a…
"Icterus. Orioles. Bill averaging as long as head (more or less); very acute, sometimes decurved." Elliot…
"Zenaidura carolinensis. Carolina Dove. Mourning Dove. Wild Dove. Upper parts, including middle tail-feathers,…
"North American White Pelican. Bill and feet ordinarily yellow; much reddened in the breeding season,…
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