File:Origin of Vertebrates Fig 080.png

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English: Fig. 80.—Ventral View of Head Region of Ammocœtes.


Th., thyroid gland; M., lower lip, with its muscles.


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


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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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current16:38, 10 November 2013Thumbnail for version as of 16:38, 10 November 2013728 × 1,812 (191 KB)Keith Edkins (talk | contribs)== {{int:filedesc}} == {{Information |Description={{En|Fig. 80.—Ventral View of Head Region of Ammocœtes. ''Th.'', thyroid gland; ''M.'', lower lip, with its muscles. (All references in this work to ''Ammocœtes'' or ''Petromyzon'' appear to ref...

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