File:BeakSheath.jpg

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Original file (848 × 908 pixels, file size: 72 KB, MIME type: image/jpeg)

Captions

Captions

Structure of a cormorant's bill

Summary

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Description
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

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File history

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Date/TimeThumbnailDimensionsUserComment
current20:58, 23 January 2023Thumbnail for version as of 20:58, 23 January 2023848 × 908 (72 KB)JMK (talk | contribs)adjust midtones
13:12, 27 March 2010Thumbnail for version as of 13:12, 27 March 2010848 × 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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