File:BeakSheath.jpg
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Summary
[edit]DescriptionBeakSheath.jpg |
Afrikaans: Skede van 'n kormorantsnawel
(A) Disseksie van die snawelskede van 'n kormorant wat die laaste oorblyfsel van die eens oop nariale opening toon – ter illustrasie is 'n vesel deur hierdie opening tot binne die mond gevoer. By volgroeide voëls word hierdie opening gesluit deur 'n prop, gevorm deur 'n ingroeiing van die benige skede. In die embrio (B) is die opening steeds oop. English: Sheath of a cormorant's bill A, Dissection of the beak-sheath of a Cormorant showing the last trace of the once open narial aperture – a bristle has been passed through to the opening in the roof of the mouth. During life this aperture is closed by a plug, formed by an ingrowth of the bony sheath. In the Embryo (B) the aperture is still open. |
Date | |
Source | A history of birds |
Author | William Plane Pycraft, 1868-1942 |
Licensing
[edit]Public domainPublic domainfalsefalse |
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
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https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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current | 20:58, 23 January 2023 | ![]() | 848 × 908 (72 KB) | JMK (talk | contribs) | adjust midtones |
13:12, 27 March 2010 | ![]() | 848 × 908 (62 KB) | Shyamal (talk | contribs) | {{Information |Description={{en|1=Sheath of a cormorant's bill}} |Source=A history of birds |Author=William Plane Pycraft, 1868-1942 |Date=1910 |Permission= |other_versions= }} Category:Bird anatomy |
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