File:Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of (14564031699).jpg

Identifier: keytonorthameric01coue (find matches)
Title: Key to North American birds. Containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary, inclusive of Greenland and lower California, with which are incorporated General ornithology, an outline of the structure and classification of birds, and Field ornithology, a manual of collecting, preparing, and preserving birds
Year: 1890 (1890s)
Authors: Coues, Elliott, 1842-1899
Subjects: Birds -- North America Birds -- Collection and preservation
Publisher: Boston, D. Estes and Company
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

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necessary, therefore, for the student to clearly understandthis matter, which I will lay before him as nearly as ))ossible in the words of the authorsjust mentioned. Dromaeognathism (Gr. hpopaioi, dromaios, a runner: genus-name of the emeu). — All theRatite birds, and the tinamous alone of Carinate birds, are dromccognathous. The posterior-ends of the palatines and the anterior ends of the pterygoids are Aery imperfectly, or ntjt at all,articulated with the basisphenoidal rostrum, being usually separated from it, and supported bythe broad, cleft, hinder end of the vomer. Strong basipterygoid processes, arising from the- THE ANATOMY OF BIRDS. — OSTEOLOGY 175 g -^° ° S 2 ^ sill ill: •a =: g a g- c ^ s ^.^ H. ~ =- c o = s- 3 toS ^-S C? S 9 e 5 ■r>- •, tb •TO ^ _ - --O ; p s 5 I i •§ 5 * g: 5- !z! s •S r --^ g 5 S- ? .^ 2f S ?^ -g. 1.1 p — _, S^ re c«» 5-^ 3 ■^ 5 3 » i >s> 3 3 2..? •H P p =• 2. - 2. S ^ i5 s n. 5. ^s- 2. 3 w g; I § s-r ^:? 3 S CL o.
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boayf.f the basisphonoid and not from the n.strum, articulate with facets which are siiiiatednearer tlie posterior than the anterior ends of the inner edges of the pterygoid bones. 1 his is 176 GENERAL ORNITHOLOGY. the gist of dromccognathism; it is exhibited in several ways, (a) In Struthio alone, fig. 75,the very short vomer, borne upon the rostrum, articulates neither with palatines nor with ptery-goids, but with the maxillo-palatines ; and the palatines, which are remote from the rostrum,advance beyond the maxillo-palatines, as in most birds, (fc) In RJiea, the vomer is as long asusual in birds, and articulates behind with the palatines and pterygoids, but does not join themaxillo-palatines in front; the short palatines unite with the inner and posterior edges of thethin fenestrated maxillo-palatines. (c) In Casuarius and DromcEUS (cassowary and emeu),the long vomer articulates behind with the palatines and pterygoids, and uuites in front withthe maxillo-palatines; these are flat,

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