File:Origin of Vertebrates Fig 085.png

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Summary

Description
English: Fig. 85.—Facial Segment of Ammocœtes marked out by Shading.


VII. 1, thyroid part of segment; VII. 2, hyoid or branchial part; 3-9, succeeding branchial segments belonging to IXth and Xth nerves; V, the velar folds; Ps. br., Dohrn's pseudo-branchial groove; Th. o., thyroid opening; C, curled portion of thyroid.


(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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current16:52, 10 November 2013Thumbnail for version as of 16:52, 10 November 20131,371 × 1,717 (156 KB)Keith Edkins== {{int:filedesc}} == {{Information |Description={{En|Fig. 85.—Facial Segment of Ammocœtes marked out by Shading. ''VII.'' 1, thyroid part of segment; ''VII.'' 2, hyoid or branchial part; 3-9, succeeding branchial segments belonging to IXth and X...

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