File:Origin of Vertebrates Fig 033.png

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English: Fig. 33.—Pineal Eye of Ammocœtes, with its Ganglion Habenulæ.


On the left side the eye is drawn as it appeared in the section. On the right side I (WHG) have removed the pigment from the nerve end-cells, and drawn the eye as, in my opinion, it would appear if it were functional.


(All references in this work to Ammocœtes or Petromyzon appear to refer to the species now called Lampetra planeri.)
Date
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.

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current22:17, 9 November 2013Thumbnail for version as of 22:17, 9 November 20131,111 × 1,413 (283 KB)Keith Edkins (talk | contribs)== {{int:filedesc}} == {{Information |Description={{En|Fig. 33.—Pineal Eye of Ammocœtes, with its ''Ganglion Habenulæ.'' On the left side the eye is drawn as it appeared in the section. On the right side I have removed the pigment from the nerve ...

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