File:Origin of Vertebrates Fig 125.png

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Summary

Description
English: Fig. 125.—Diagram to show the Meeting of the Four Tubes in such a Vertebrate as the Lamprey.


Nc., neural canal with its infundibular termination; Nch., notochord; Al., alimentary canal with its anterior diverticulum; Hy., hypophysial or nasal tube; Or., oral chamber closed by septum.


(All references in this work to Ammocœtes or Petromyzon appear to refer to the European Brook Lamprey, now called Lampetra planeri.)
Date
Source The Origin of Vertebrates. https://archive.org/details/originofvertebra1908gask
Author Walter Holbrook Gaskell.


Licensing

Public domain

The author died in 1914, so 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 100 years or fewer.


This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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current21:01, 10 November 2013Thumbnail for version as of 21:01, 10 November 20131,955 × 681 (179 KB)Keith Edkins== {{int:filedesc}} == {{Information |Description={{En|Fig. 125.—Diagram to show the Meeting of the Four Tubes in such a Vertebrate as the Lamprey. ''Nc.'', neural canal with its infundibular termination; ''Nch.'', notochord; ''Al.'', alimentary ca...

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